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                                                                    EXHIBIT 10.6

                            TASER INTERNATIONAL, INC.
                             1999 STOCK OPTION PLAN

                                   ARTICLE 1.
                            ESTABLISHMENT AND PURPOSE

         1.1      ESTABLISHMENT. TASER International, Incorporated (the
"Company") hereby establishes a plan providing for the grant of stock options to
certain eligible individuals who have or will render services to the Company and
any Subsidiary. This plan shall be known as the TASER International,
Incorporated 1999 Stock Option Plan (the "Plan"). This Plan has been approved by
the Board of Directors and the Shareholders of the Company in contemplation of a
restatement of the Company's Articles of Incorporation. Accordingly, this Plan
assumes the filing of the Restated Articles of Incorporation.

         1.2      PURPOSE. The purpose of the Plan is to advance the interests
of the Company and its shareholders by enhancing the Company's ability to
attract and retain qualified persons to perform services for the Company by
providing incentives to such persons to put forth maximum efforts for the
Company and by rewarding persons who contribute to the achievement of the
Company's economic objectives.

                                   ARTICLE 2.
                                   DEFINITIONS

         The following terms have the meanings set forth below, unless the
context otherwise requires:

         2.1      "AFFILIATE" means with respect to any Person, (i) any Person
directly or indirectly controlling, controlled by, or under common control with
such Person, (ii) any person owning or controlling ten percent (10%) or more of
the outstanding voting interests of such Person, (iii) any officer, director, or
general partner of such Person, or (iv) any Person who is an officer, director,
general partner or holder of ten percent (10%) or more of the voting interests
of any Person described in clauses (i) through (iii) of this sentence. For
purposes of this definition, the term "controls," "is controlled by," or "is
under common control with" shall mean the possession, direct or indirect, of the
power to direct or cause the direction of the management and policies of a
person or power to direct or cause the direction of the management and policies
of a person or entity, whether through the ownership of voting securities, by
contract or otherwise.

         2.2      "BOARD" means the Board of Directors of the Company.

         2.3      "CODE" means the Internal Revenue Code of 1986, as amended.

         2.4      "COMMITTEE" means the group of individuals administering the
Plan, as provided in Article 3 of the Plan.

         2.5      "COMMON STOCK" means the common stock of the Company, no par
value, or the number and kind of shares of stock or other securities into which
such Common Stock may be changed in accordance with Section 4.3 of the Plan.

         2.6      "CONVERSION RIGHT" means the right, if granted pursuant to
Section 6.6 below, of a Participant to require the Company to convert an Option,
in whole or in part at any time after it becomes exercisable and prior to its
expiration, into shares of Common Stock without the payment of any exercise
price. If a Participant is

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granted a Conversion Right, then upon exercise of the Option or a part thereof,
the Company shall deliver to the Participant (subject to Article 9 below) that
number of shares of Common Stock computed by multiplying (A) the number of
Option Shares underlying the Option or part thereof being exercised by (B) the
quotient obtained by dividing (x) the difference between (i) the aggregate Fair
Market Value for the Option Shares underlying the Option (or part thereof being
exercised) immediately prior to the exercise of the Conversion Right and (ii)
the aggregate exercise price for the Option (or part thereof being exercised) by
(y) the aggregate Fair Market Value for the Option Shares underlying the Option
(or part thereof being exercised) immediately prior to the exercise of the
Conversion Right.

         2.7      "DISABILITY" means the permanent and total disability of the
Participant within the meaning of Section 22(e)(3) of the Code.

         2.8      "ELIGIBLE RECIPIENT" means all employees (including, without
limitation, officers and directors who are also employees), directors,
consultants and independent contractors of the Company.

         2.9      "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

         2.10     "FAIR MARKET VALUE" means, with respect to the Common Stock,
the following:

                  (a) If the Common Stock is listed or admitted to unlisted
         trading privileges on any national securities exchange or is not so
         listed or admitted but transactions in the Common Stock are reported on
         The Nasdaq National Market(R), the last sale price of the Common Stock
         on such exchange or reported by The Nasdaq National Market(R) System as
         of such date (or, if no shares were traded on such day, as of the next
         preceding day on which there was such a trade).

                  (b) If the Common Stock is not so listed or admitted to
         unlisted trading privileges or reported on The Nasdaq National
         Market(R), and bid and asked prices therefor in the over-the-counter
         market are reported by The Nasdaq SmallCap Market(SM), the Nasdaq
         Bulletin Board, or the National Quotation Bureau, Inc. (or any
         comparable reporting service), the mean of the closing bid and asked
         prices as of such date, as so reported by the applicable Nasdaq(R)
         system, or, if not so reported thereon, as reported by the National
         Quotation Bureau, Inc. (or such comparable reporting service).

                  (c) In all other cases, such price as the Committee determines
         in good faith in the exercise of its reasonable discretion.

         2.11     "INCENTIVE STOCK OPTION" means a right to purchase Common
Stock granted to an Eligible Recipient pursuant to Article 6 of the Plan that
qualifies as an "incentive stock option" within the meaning of Section 422 of
the Code.

         2.12     "NON-QUALIFIED STOCK OPTION" means a right to purchase Common
Stock granted to an Eligible Recipient pursuant to Article 6 of the Plan that
does not qualify as an Incentive Stock Option.

         2.13     "OPTION" means an Incentive Stock Option or a Non-Qualified
Stock Option.

         2.14     "OPTION SHARES" means the shares of Common Stock issuable upon
exercise of an Option.

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         2.15     "PARTICIPANT" means an Eligible Recipient who receives one or
more Options under of the Plan.

         2.16     "PERSON" means any individual, corporation, partnership,
group, association, or other "person" (as such term is used in Section 14(d) of
the Exchange Act), other than the Company, a wholly-owned Subsidiary of the
Company, or any employee benefit plan sponsored by the Company or a wholly-owned
Subsidiary of the Company.

         2.17     "PREVIOUSLY ACQUIRED SHARES" mean shares of Common Stock that
are already owned by the Participant.

         2.18     "RETIREMENT" means the retirement of a Participant pursuant to
and in accordance with the regular or, if approved by the Board for purposes of
the Plan, any early retirement plan or practice of the Company or Subsidiary
then covering the Participant.

         2.19     "SECURITIES ACT" means the Securities Act of 1933, as amended.

         2.20     "SUBSIDIARY" means any subsidiary corporation of the Company
within the meaning of Section 424(f) and (g) of the Code.

                                   ARTICLE 3.
                               PLAN ADMINISTRATION

         3.1      THE COMMITTEE. The Plan shall be administered by the Board, or
by a committee of the Board consisting of not less than two persons; provided,
however, that from and after the date on which the Company first registers a
class of its equity securities under Section 12 of the Exchange Act, the Plan
shall be administered to the extent provided herein by a committee appointed by
the Board consisting of not less than two members of the Board. Members of such
a committee, if established, shall be appointed from time to time by the Board,
shall serve at the pleasure of the Board and may resign at any time upon written
notice to the Board. A majority of the members of such a committee shall
constitute a quorum. Such a committee shall act by majority approval of the
members, shall keep minutes of its meetings and shall provide copies of such
minutes to the Board. Action of such a committee may be taken without a meeting
if unanimous written consent is given. Copies of minutes of such a committee's
meetings and of its actions by written consent shall be provided to the Board
and kept with the corporate records of the Company. As used in this Plan, the
term "Committee" will refer to the Board or to such a committee, if established.

         3.2      AUTHORITY OF THE COMMITTEE.

                  (a) In accordance with and subject to the provisions of the
         Plan, the Committee shall have the authority to recommend to the Board
         for its consideration and approval (i) the Eligible Recipients who
         shall be selected as Participants, (ii) the nature and extent of the
         Options to be granted to each Participant (including the number of
         shares of Common Stock to be subject to each Option, the exercise price
         and the manner in which Options will vest or become exercisable), (iii)
         the time or times when Options will be granted, (iv) the duration of
         each Option, (v) the restrictions and other conditions to which the
         exercisability or vesting of Options may be subject, and (vi) such
         other provisions of the Options as the Committee may deem necessary or
         desirable and as consistent with the terms of the Plan. The Committee
         shall determine the form or forms of the option agreements with
         Participants which shall

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         evidence the particular terms, conditions, rights, and duties of the
         Company and the Participants with respect to Options granted pursuant
         to the Plan, which agreements shall be consistent with the provisions
         of the Plan.

                  (b) With the consent of the Participant affected thereby and
         subject to the consideration and approval of the Board, the Committee
         may amend or modify the terms of any outstanding Option in any manner,
         provided that the amended or modified terms are permitted by the Plan
         as then in effect. Without limiting the generality of the foregoing
         sentence, the Committee may, with the consent of the Participant
         affected thereby and subject to consideration and approval of the
         Board, modify the exercise price, number of shares, or other terms and
         conditions of an Option, extend the term of an Option, accelerate the
         exercisability or vesting or otherwise terminate any restrictions
         relating to an Option, accept the surrender of any outstanding Option,
         or, to the extent not previously exercised or vested, authorize the
         grant of new Options in substitution for surrendered Options.

                  (c) The Committee shall have the authority to interpret the
         Plan and, subject to the provisions of the Plan, to establish, adopt,
         and revise such rules and regulations relating to the Plan as it may
         deem necessary or advisable for the administration of the Plan. The
         Committee's decisions and determinations under the Plan need not be
         uniform and may be made selectively among Participants, whether or not
         such Participants are similarly situated. Each determination,
         interpretation, or other action made or taken by the Committee pursuant
         to the provisions of the Plan shall be conclusive and binding for all
         purposes and on all persons, including, without limitation, the Company
         and its Subsidiaries, the shareholders of the Company, the Committee
         and each of its members, the directors, officers, and employees of the
         Company and its Subsidiaries, and the Participants and their respective
         successors in interest. No member of the Committee shall be liable for
         any action or determination made in good faith with respect to the Plan
         or any Option granted under the Plan.

                                   ARTICLE 4.
                            STOCK SUBJECT TO THE PLAN

         4.1      NUMBER OF SHARES. Subject to adjustment as provided in Section
4.3 below, the maximum number of shares of Common Stock that shall be authorized
and reserved for issuance under the Plan shall be 5,000,000 shares of Common
Stock.

         4.2      SHARES AVAILABLE FOR USE. Shares of Common Stock that may be
issued upon exercise of Options shall be applied to reduce the maximum number of
shares of Common Stock remaining available for use under the Plan. Any shares of
Common Stock that are subject to an Option (or any portion thereof) that lapses,
expires, or for any reason is terminated unexercised shall automatically again
become available for use under the Plan. Also, Previously Acquired Shares which
are tendered to the Company in satisfaction or partial satisfaction of the
Exercise Price pursuant to Section 6.6 or in satisfaction or partial
satisfaction of withholding obligations pursuant to Article 10 shall become
available for use under the Plan to the extent permitted by Rule 16b-3 of the
Exchange Act.

         4.3      ADJUSTMENTS TO SHARES.

                  (a) In the event of a stock split, any reorganization, merger,
         consolidation, recapitalization, liquidation, reclassification, stock
         dividend, stock split, combination of shares, rights offering,

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         extraordinary dividend or divestiture (including a spin-off), or any
         other change in the corporate structure or shares of the Company, the
         Committee (or, if the Company is not the surviving corporation in any
         such transaction, the board of directors of the surviving corporation)
         shall make appropriate adjustment (which determination shall be
         conclusive) as to the number and kind of securities subject to and
         reserved under the Plan and, in order to prevent dilution or
         enlargement of the rights of Participants, the number, kind, and
         exercise price of securities subject to outstanding Options. Without
         limiting the generality of the foregoing, in the event that any of such
         transactions are effected in such a way that holders of Common Stock
         shall be entitled to receive stock, securities, or assets, including
         cash, with respect to or in exchange for such Common Stock, all
         Participants holding outstanding Options shall upon the exercise of
         such Options receive, in lieu of any shares of Common Stock they may be
         entitled to receive, such stock, securities, or assets, including cash,
         as would have been issued to such Participants if their Options had
         been exercised and such Participants had received Common Stock prior to
         such transaction.

                  (b) Notwithstanding Section 4.3(a), there shall be no
         adjustment to the shares authorized pursuant to this Plan for an event
         described in Section 4.3(a) which occurs before or simultaneously with
         the Effective Date of this Plan.

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                                   ARTICLE 5.
                                  PARTICIPATION

         Participants in the Plan shall be those Eligible Recipients who, in the
judgment of the Committee, have performed, are performing, or during the term of
an Option will perform, services in the management, operation, and development
of the Company or any Subsidiary or Affiliate thereof, and significantly
contributed, are significantly contributing, or are expected to significantly
contribute to the achievement of corporate economic objectives. Eligible
Recipients may be granted from time to time one or more Options, as may be
recommended by the Committee in its sole discretion to the Board of Directors
for its consideration and approval. The number, type, terms, and conditions of
Options granted to various Eligible Recipients need not be uniform, consistent,
or in accordance with any plan, regardless of whether such Eligible Recipients
are similarly situated. Upon determination by the Committee and consideration
and approval by the Board that an Option is to be granted to an Eligible
Recipient, written notice shall be given such person, specifying the terms,
conditions, rights and duties related thereto. Each Eligible Recipient to whom
an Option is to be granted shall enter into an agreement with the provisions of
the Plan, specifying such terms, conditions, rights and duties. Options shall be
deemed to be granted as of the date specified in the grant resolution of the
Board, and the related option agreements shall be dated as of such date.

                                   ARTICLE 6.
                                  STOCK OPTIONS

         6.1      GRANT. An Eligible Recipient may be granted one or more
Options under the Plan and such Options shall be subject to such terms and
conditions, consistent with the other provisions of the Plan, as shall be
determined by the Committee in its sole discretion upon the consideration and
approval of the Board. The Committee may recommend to the Board whether an
Option is to be considered an Incentive Stock Option or a Non-Qualified Stock
Option; provided, however, that an Incentive Stock Option shall be granted only
to an Eligible Recipient who is an employee of the Company or a Subsidiary or
Affiliate thereof. The terms of the agreement relating to a Non-Qualified Stock
Option shall expressly provide that such Option shall not be treated as an
Incentive Stock Option. Options shall be granted for no cash consideration
unless minimal cash consideration is required by applicable law.

         6.2      EXERCISE. An Option shall become exercisable at such times and
in such installments (which may be cumulative) as shall be determined by the
Committee in its sole discretion at the time the Option is granted. Upon the
completion of its exercise period, an Option, to the extent not then exercised,
shall expire.

         6.3      EXERCISE PRICE.

                  (a) Incentive Stock Options. The per share price to be paid by
         the Participant at the time an Incentive Stock Option is exercised
         shall be determined by the Committee, in its discretion and upon the
         consideration and approval of the Board, at the date of its grant;
         provided, however, that such price shall not be less than (i) 100% of
         the Fair Market Value of one share of Common Stock on the date the
         Option is granted, or (ii) 110% of the Fair Market Value of one share
         of Common Stock on the date the Option is granted if, at that time the
         Option is granted, the Participant owns, directly or indirectly (as
         determined pursuant to Section 424(d) of the Code), more than 10% of
         the total combined

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         voting power of all classes of stock of the Company or any Subsidiary
         or parent corporation of the Company (within the meaning of Sections
         424(f) and 424(e), respectively, of the Code).

                  (b) Non-Qualified Stock Options. The per share price to be
         paid by the Participant at the time a Non-Qualified Stock Option is
         exercised shall be determined by the Committee in its sole discretion
         upon the consideration and approval of the Board at the time the Option
         is granted; provided, however, that such price shall not be less than
         85% of the Fair Market Value of one share of Common Stock on the date
         the Option is granted.

         6.4      DURATION.

                  (a) Incentive Stock Options. The period during which an
         Incentive Stock Option may be exercised shall be fixed by the Committee
         in its sole discretion upon consideration and approval of the Board at
         the time such Option is granted; provided, however, that in no event
         shall such period exceed ten (10) years from its date of grant or, in
         the case of a Participant who owns, directly or indirectly (as
         determined pursuant to Section 424(d) of the Code), more than 10% of
         the total combined voting power of all classes of stock of the Company
         or any Subsidiary or parent corporation of the Company (within the
         meaning of Section 424(f) and 424(e), respectively, of the Code), five
         (5) years from its date of grant.

                  (b) Non-Qualified Stock Options. The period during which a
         Non-Qualified Stock Option may be exercised shall be fixed by the
         Committee in its sole discretion upon consideration and approval of the
         Board at its date of grant.

                  (c) Effect of Termination of Employment or Other Service.
         Notwithstanding this Section 6.4, except as provided in Articles 7 and
         8 of the Plan, all Options granted to a Participant shall terminate and
         may no longer be exercised upon the termination of the Participant's
         employment or other status with the Company, its Affiliates or
         Subsidiaries.

         6.5      MANNER OF EXERCISE. An Option may be exercised by a
Participant in whole or in part from time to time, subject to the conditions
contained herein and in the agreement evidencing such Option, by delivery, in
person or through certified or registered mail, of written notice of exercise to
the Company at its principal executive office (Attention: Chief Executive
Officer), and by paying in full the total Option exercise price for the shares
of Common Stock purchased. Such notice shall be in a form satisfactory to the
Committee and shall specify the particular Option (or portion thereof) that is
being exercised and the number of shares with respect to which the Option is
being exercised. Subject to compliance with Section 11.1 of the Plan, the
exercise of the Option shall be deemed effective upon receipt of such notice and
payment complying with the terms of the Plan and the execution of the agreement
evidencing such Option. As soon as practicable after the effective exercise of
the Option, the Participant shall be recorded on the stock transfer books of the
Company as the owner of the shares purchased, and the Company shall deliver to
the Participant one or more duly issued stock certificates evidencing such
ownership. If a Participant exercises any Option with respect to some, but not
all, of the shares of Common Stock subject to such Option, the right to exercise
such Option with respect to the remaining shares shall continue until it expires
or terminates in accordance with its terms. An Option shall only be exercisable
with respect to whole shares.

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         6.6      PAYMENT OF EXERCISE PRICE. The total purchase price of the
shares to be purchased upon exercise of an Option shall be paid entirely in cash
(by certified check or money order) provided, however, that the Committee, in
its sole discretion upon the original grant of the Option or thereafter, and
upon the consideration and approval of the Board, may allow such payments to be
made, in whole or in part, by transfer from the Participant to the Company of
Previously Acquired Shares or by exercise of a Conversion Right. In determining
whether or upon what terms and conditions a Participant will be permitted to pay
the purchase price of an Option in a form other than cash, the Committee may
consider all relevant facts and circumstances including, without limitation, the
tax and securities law consequences to the Participant and the Company and the
financial accounting consequences to the Company. In the event the Participant
is permitted to pay the purchase price of an Option in whole or in part with
Previously Acquired Shares, the value of such shares shall be equal to their
Fair Market Value on the date of exercise of the Option. No shares of the Common
Stock shall be delivered pursuant to the exercise of any Option until payment in
full of any amount required to be paid pursuant to the Plan or the applicable
option agreement is, or is arranged to be, received by the Company.

         6.7      RIGHTS AS A SHAREHOLDER. The Participant shall have no rights
as a shareholder with respect to any shares of Common Stock covered by an Option
until the Participant shall have become the holder of record of such shares, and
no adjustments shall be made for dividends or other distributions or other
rights as to which there is a record date preceding the date the Participant
becomes the holder of record of such shares, except as the Committee may
determine pursuant to Section 4.3 of the Plan.

         6.8      DISPOSITION OF COMMON STOCK ACQUIRED PURSUANT TO THE EXERCISE
OF INCENTIVE STOCK OPTIONS. Prior to making a disposition (as defined in Section
424(c) of the Code) of any shares of Common Stock acquired pursuant to the
exercise of an Incentive Stock Option granted under the Plan before the
expiration of two years after its date of grant or before the expiration of one
year after its date of exercise and the date on which such shares of Common
Stock were transferred to the Participant pursuant to exercise of the Option,
the Participant shall send written notice to the Company of the proposed date of
such disposition, the number of shares to be disposed of, the amount of proceeds
to be received from such disposition and any other information relating to such
disposition that the Company may reasonably request. The right of a Participant
to make any such disposition shall be conditioned on the receipt by the Company
of all amounts necessary to satisfy any federal, state, or local withholding and
employment-related tax requirements attributable to such disposition. The
Committee shall have the right, in its sole discretion, to endorse the
certificates representing such shares with a legend restricting transfer and to
cause a stop transfer order to be entered with the Company's transfer agent
until such time as the Company receives the amounts necessary to satisfy such
withholding and employment-related tax requirements or until the later of the
expiration of two years from its date of grant or one year from its date of
exercise and the date on which such shares were transferred to the Participant
pursuant to the exercise of the Option.

         6.9      AGGREGATE LIMITATION OF STOCK SUBJECT TO INCENTIVE STOCK
OPTIONS. To the extent that the aggregate Fair Market Value (determined as of
the date an Incentive Stock Option is granted) of the shares of Common Stock
with respect to which incentive stock options (within the meaning of Section 422
of the Code) are exercisable for the first time by a Participant during any
calendar year (under the Plan and any other incentive stock option plans of the
Company or any Subsidiary or any parent corporation of the Company) exceeds
$100,000 (or such other amount as may be prescribed by the Code from time to
time), such excess Options shall be treated as Non-Qualified Stock Options. The
determination shall be made by taking incentive stock options into account in
the order in which they were granted. If such excess only applies to a portion
of an

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incentive stock option, the Committee, in its discretion, shall designate which
shares shall be treated as shares to be acquired upon exercise of an incentive
stock option.

                                   ARTICLE 7.
              EFFECT OF TERMINATION OF EMPLOYMENT OR OTHER SERVICE

         7.1      TERMINATION OF EMPLOYMENT OR OTHER SERVICE DUE TO DEATH,
DISABILITY, OR RETIREMENT. Except as otherwise provided in Article 8 of the Plan
or as otherwise determined by the Committee upon the consideration and approval
of the Board either at time an Option is granted or thereafter, in the event a
Participant's employment or other service with the Company and all Subsidiaries
or Affiliates is terminated by reason of such Participant's death, Disability,
or Retirement, all outstanding Options then held by the Participant shall become
immediately exercisable in full and remain exercisable after such termination
for a period of three months in the case of Retirement and one year in the case
of death or Disability (but in no event after the expiration date of any such
Option).

         7.2      TERMINATION OF EMPLOYMENT OR OTHER SERVICE FOR REASONS OTHER
THAN DEATH, DISABILITY, OR RETIREMENT. Except as otherwise provided in Article 8
of the Plan or as otherwise determined by the Committee upon the consideration
and approval of the Board either at the time an Option is granted or thereafter,
in the event of termination of the Participant's employment or other status with
the Company and all Subsidiaries or Affiliates in relation to which the Option
was granted for any reason other than death, Disability, or Retirement, all
rights of the Participant under the Plan shall immediately terminate without
notice of any kind, and no Options then held by the Participant shall thereafter
be exercisable; provided, however, that if such termination is due to any reason
other than termination by the Company or any Subsidiary or Affiliate for
"cause," all outstanding Options then held by such Participant shall remain
exercisable to the extent exercisable as of such termination for a period of
three months after such termination (but in no event after the expiration date
of any such Option). For purposes of this Section 7.2, "cause" shall be as
defined in any employment or other agreement or policy applicable to the
Participant or, if no such agreement or policy exists, shall mean (a)
dishonesty, fraud, misrepresentation, embezzlement, or material or deliberate
injury or attempted injury, in each case related to the Company or any
Subsidiary, (b) any unlawful or criminal activity of a serious nature, (c) any
willful breach of duty, habitual neglect of duty, or unreasonable job
performance, or (d) any material breach of a confidentiality or noncompetition
agreement entered into with the Company or any Subsidiary.

         7.3      MODIFICATION OF EFFECT OF TERMINATION. Notwithstanding the
provisions of this Article 7, upon a Participant's termination of employment or
other status with the Company and all Subsidiaries or Affiliates with respect to
which Options were granted, the Committee may, in its sole discretion upon the
consideration and approval of the Board (which may be exercised before or
following such termination) cause Options, or any portions thereof, then held by
such Participant to become exercisable and remain exercisable following such
termination in the manner determined by the Committee upon the consideration and
approval of the Board; provided, however, that no Option shall be exercisable
after the expiration date thereof and any Incentive Stock Option that remains
unexercised more than three months following employment termination by reason of
Retirement or more than one year following employment termination by reason of
death or Disability shall thereafter be deemed to be a Non-Qualified Stock
Option.

         7.5      DATE OF TERMINATION. Unless the Committee shall otherwise
determine in its sole discretion, a Participant's employment or other service
shall, for purposes of the Plan, be deemed to have terminated on the

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date such Participant ceases to perform services for the Company and all
Subsidiaries or Affiliates, as determined in good faith by the Committee.

                                   ARTICLE 8.
                                CHANGE OF CONTROL

         8.1      CHANGE IN CONTROL. For purposes of this Article 8, a "Change
in Control" of the Company shall mean (a) the sale, lease, exchange, or other
transfer of all or substantially all of the assets of the Company (in one
transaction or in a series of related transactions) to a corporation that is not
controlled by the Company, (b) the approval by the shareholders of the Company
of any plan or proposal for the liquidation or dissolution of the Company, or
(c) a change in control of the Company of a nature that would be required to be
reported (assuming such event has not been "previously reported") in response to
Item 1(a) of the Current Report on Form 8-K, as in effect on the effective date
of the Plan, pursuant to Section 13 or 15(d) of the Exchange Act, whether or not
the Company is then subject to such reporting requirement; provided, however,
that, without limitation, such a Change in Control shall be deemed to have
occurred at such time as (i) any Person becomes after the effective date of the
Plan the "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act),
directly or indirectly, of 20% or more of the combined voting power of the
Company's outstanding securities ordinarily having the right to vote at
elections of directors, or (ii) individuals who constitute the Board on the
effective date of the Plan cease for any reason to constitute at least a
majority thereof, provided that any person becoming a director subsequent to the
effective date of the Plan whose election, or nomination for election by the
Company's shareholders, was approved by a vote of at least a majority of the
directors comprising or deemed pursuant hereto to comprise the Board on the
effective date of the Plan (either by a specific vote or by approval of the
proxy statement of the Company in which such person is named as a nominee for
director) shall be, for purposes of this clause (ii) and the following sentence,
considered as though such person were a member of the Board on the effective
date of the Plan. Notwithstanding anything in the foregoing to the contrary, no
Change in Control shall be deemed to have occurred for purposes of this Section
8.1 by virtue of any transaction which shall have been approved by the
affirmative vote of at least a majority of the members of the Board or by the
shareholders of the Company on the effective date of the Plan.

         8.2      ACCELERATION OF VESTING. If a Change of Control of the Company
shall be about to occur or shall occur, the Committee, in its sole discretion
and upon the consideration and approval of the Board, may determine that all
outstanding Options shall become immediately exercisable in full and shall
remain exercisable during the remaining term thereof, regardless of whether the
employment or other status of the Participants with respect to which Options
have been granted shall continue with the Company or any Subsidiary.

         8.3      CASH PAYMENT. If a Change in Control of the Company shall be
about to occur or shall occur, then the Committee, in its sole discretion upon
the consideration and approval of the Board and without the consent of any
Participant effected thereby, may determine that some or all Participants
holding outstanding Options shall receive, with respect to some or all of the
shares of Common Stock subject to such Options, as of the effective date of any
such Change in Control of the Company, cash in an amount equal to the excess of
the Fair Market Value of such shares immediately prior to the effective date of
such Change in Control of the Company over the exercise price per share of such
Options.

         8.4      LIMITATION ON CHANGE IN CONTROL PAYMENTS. Notwithstanding
anything in Sections 8.2 or 8.3 above to the contrary, if, with respect to a
Participant, the acceleration of the exercisability of an Option as provided in
Section 8.2 or the payment of cash in exchange for all or part of an Option as
provided in Section

                                       10
<PAGE>   11
8.3 above (which acceleration or payment could be deemed a "payment" within the
meaning of Section 280G(b)(2) of the Code), together with any other payments
which such Participant has the right to receive from the Company or any
corporation which is a member of an "affiliated group" (as defined in Section
1504(a) of the Code without regard to Section 1504(b) of the Code) of which the
Company is a member, would constitute a "parachute payment" (as defined in
Section 280G(b)(2) of the Code), then the acceleration of exercisability and the
payments to such Participant pursuant to Sections 8.2 and 8.3 above shall be
reduced to the largest extent or amount as, in the sole judgment of the
Committee, will result in no portion of such payments being subject to the
excise tax imposed by Section 4999 of the Code.

                                   ARTICLE 9.
                 RIGHT TO WITHHOLD; PAYMENT OF WITHHOLDING TAXES

         The Company is entitled to (a) withhold and deduct from future wages of
the Participant (or from other amounts which may be due and owing to the
Participant from the Company) or make other arrangements for the collection of,
all legally required amounts necessary to satisfy any and all federal, state,
and local withholding and employment-related tax requirements (i) attributable
to the grant or exercise of an Option or to a disqualifying disposition of stock
received upon exercise of an Incentive Stock Option, or (ii) otherwise incurred
with respect to an Option, or (b) require the Participant promptly to remit the
amount of such withholding to the Company before taking any action with respect
to the exercise of an Option or the issuance of any stock certificate either to
the Participant or any transferee. The Committee, in its sole discretion, may
permit a Participant to pay all or a portion of such withholding liability
either by surrendering Previously Acquired Shares already owned by the
Participant or by electing to have the Company retain shares subject to the
Option, provided that the Committee determines that the fair market value of the
surrendered Previously Acquired Shares or the retained shares is equal to such
withholding liability.

                                   ARTICLE 10.
                 RIGHTS OF ELIGIBLE RECIPIENTS AND PARTICIPANTS;
                                 TRANSFERABILITY

         10.1     EMPLOYMENT OR SERVICE. Nothing in the Plan shall interfere
with or limit in any way the right of the Company or any Subsidiary to terminate
the employment or service of any Eligible Recipient or Participant at any time,
or confer upon any Eligible Recipient or Participant any right to continue in
the employ or service of the Company or any Subsidiary.

         10.2     RESTRICTIONS ON TRANSFER. Other than pursuant to a qualified
domestic relations order (as defined by the Code), no right or interest of any
Participant in an Option prior to the exercise of such Options shall be
assignable or transferrable, or subjected to any lien, during the lifetime of
the Participant, either voluntarily or involuntarily, directly or indirectly, by
operation of law or otherwise, including execution, levy, garnishment,
attachment, pledge, divorce, or bankruptcy. In the event of a Participant's
death, such Participant's rights and interest in Options shall be transferrable
by testamentary will or the laws of descent and distribution, and payment of any
amounts due under the Plan shall be made to, and exercise of any Options (to the
extent permitted pursuant to Article 7 of the Plan) may be made by, the
Participant's legal representatives, heirs, or

                                       11
<PAGE>   12
legatees. If, in the opinion of the Committee, a Participant holding an Option
is disabled from caring for his or her affairs because of mental condition,
physical condition, or age, any payments due the Participant may be made to, and
any rights of the Participant under the Plan shall be exercised by, such
Participant's guardian, conservator, or other legal personal representative upon
furnishing the Committee with evidence satisfactory to the Committee of such
status.

         10.3     NON-EXCLUSIVITY OF THE PLAN. Nothing contained in the Plan is
intended to amend, modify, or rescind any previously approved compensation plans
or programs entered into by the Company. The Plan will be construed to be in
addition to any and all such other plans or programs. Neither the adoption of
the Plan nor the submission of the Plan to the shareholders of the Company for
approval will be construed as creating any limitations on the power or authority
of the Board to adopt such additional or other compensation arrangements as the
Board may deem necessary or desirable.

                                   ARTICLE 11.
                           SECURITIES LAW RESTRICTIONS

         11.1     SHARE ISSUANCES. Notwithstanding any other provision of the
Plan or any agreements entered into pursuant hereto, the Company shall not be
required to issue or deliver any certificate for shares of Common Stock under
this Plan, and an Option shall not be considered to be exercised notwithstanding
the tender by the Participant of any consideration therefor, unless and until
each of the following conditions has been fulfilled:

                  (a) (i) There shall be in effect with respect to such shares a
         registration statement under the Securities Act and any applicable
         state securities laws if the Committee, in its sole discretion, shall
         have determined to file, cause to become effective, and maintain the
         effectiveness of such registration statement; or (ii) if the Committee
         has determined not to so register the shares of Common Stock to be
         issued under the Plan, (A) exemptions from registration under the
         Securities Act and applicable state securities laws shall be available
         for such issuance (as determined by counsel to the Company) and (B)
         there shall have been received from the Participant (or, in the event
         of death or disability, the Participant's heir(s) or legal
         representative(s)), any representations or agreements requested by the
         Company in order to permit such issuance to be made pursuant to such
         exemptions; and

                  (b) There shall have been obtained any other consent,
         approval, or permit from any state or federal governmental agency which
         the Committee shall, in its sole discretion upon the advice of counsel,
         deem necessary or advisable.

         11.2     SHARE TRANSFERS. Shares of Common Stock issued pursuant to
Options granted under the Plan may not be sold, assigned, transferred, pledged,
encumbered, or otherwise disposed of, whether voluntarily or involuntarily,
directly or indirectly, by operation of law or otherwise, except pursuant to
registration under the Securities Act and applicable state securities laws or
pursuant to exemptions from such registrations. The Company may condition the
sale, assignment, transfer, pledge, encumbrance, or other disposition of such
shares not issued pursuant to an effective and current registration statement
under the Securities Act and all applicable state securities laws on the receipt
from the party to whom the shares of Common Stock are to be so transferred of
any representations or agreements requested by the Company in order to permit
such transfer to be made pursuant to exemptions from registration under the
Securities Act and applicable state securities laws.

                                       12
<PAGE>   13
         11.3     HOLDING PERIOD REQUIREMENTS. Any Options granted and any
Common Stock acquired pursuant to the exercise of Options under this Plan may be
subject to a six-month holding requirement from the grant date in order for the
transaction to be exempt from the short-swing trading profits provision of
Section 16(b) of the Exchange Act.

         11.4     LEGENDS.

                  (a) Unless a registration statement under the Securities Act
         and applicable state securities laws is in effect with respect to the
         issuance or transfer of shares of Common Stock under the Plan, each
         certificate representing any such shares shall be endorsed with a
         legend in substantially the following form, unless counsel for the
         Company is of the opinion as to any such certificate that such legend
         is unnecessary:

                  THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER
                  THE SECURITIES ACT OF 1933, AS AMENDED ("THE ACT"), OR UNDER
                  APPLICABLE STATE SECURITIES LAWS. THESE SECURITIES HAVE BEEN
                  ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE, SOLD,
                  ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED, OR OTHERWISE
                  DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
                  STATEMENT UNDER THE ACT AND SUCH STATE LAWS OR PURSUANT TO AN
                  EXEMPTION FROM REGISTRATION UNDER THE ACT AND SUCH STATE LAWS,
                  THE AVAILABILITY OF WHICH IS TO BE ESTABLISHED TO THE
                  SATISFACTION OF THE COMPANY.

                  (b) The Committee, in its sole discretion, may endorse
         certificates representing shares issued pursuant to the exercise of
         Incentive Stock Options with a legend in substantially the following
         form:

                  THE SALE, EXCHANGE, PLEDGE, ASSIGNMENT, OR OTHER DISPOSITION
                  OF THE SHARES REPRESENTED BY THIS CERTIFICATE IS SUBJECT TO
                  THE TRANSFER RESTRICTIONS CONTAINED IN SECTION 7.8 OF THE
                  BYLAWS OF THIS CORPORATION, AND REFERENCE SHOULD BE MADE
                  THERETO FOR THE TERMS OF SUCH RESTRICTIONS.

                                       13
<PAGE>   14
                                   ARTICLE 12.
                  PLAN AMENDMENT; MODIFICATION AND TERMINATION

         12.1     AMENDMENT; MODIFICATION; TERMINATION. The Board may suspend or
terminate the Plan or any portion thereof at any time, and may amend the Plan
from time to time in such respects as the Board may deem advisable in order that
Options under the Plan shall conform to any change in applicable laws or
regulations or in any other respect the Board may deem to be in the best
interests of the Company; provided, however, that no such amendment shall be
effective, without approval of the shareholders of the Company, if shareholder
approval of the amendment is then required to comply with or obtain exemptive
relief under any tax or regulatory requirement the Board deems desirable to
comply with or obtain exemptive relief under, including without limitation, Rule
16b-3 under the Exchange Act or any successor rule or Section 422 of the Code or
under the applicable rules or regulations of any securities exchange or the
NASD. No termination, suspension, or amendment of the Plan shall alter or impair
any outstanding Option without the consent of the Participant affected thereby;
provided, however, that this sentence shall not impair the right of the
Committee to take whatever action it deems appropriate under Section 4.3 or
Article 8 of the Plan.

                                   ARTICLE 13.
                           EFFECTIVE DATE OF THE PLAN

         13.1     EFFECTIVE DATE. The Plan is effective as of January 1, 1999,
the date adopted by the Board; provided, however, that no Incentive Stock
Options may be exercised until January 1, 1999, the date the Plan was adopted by
the shareholders of the Company in accordance with the requirements of the Code.

         13.2     DURATION OF THE PLAN. The Plan shall terminate at midnight on
December 31, 2000, and may be terminated prior thereto by Board action, and no
Option shall be granted after such termination. Options outstanding upon
termination of the Plan may continue to be exercised in accordance with their
terms.

                                   ARTICLE 14.
                                  MISCELLANEOUS

         14.1     CONSTRUCTION AND HEADINGS. The use of the masculine gender
shall also include within its meaning the feminine and the singular may include
the plural and the plural may include the singular, unless the context clearly
indicates to the contrary. The headings of the Articles, Sections, and subparts
of the Plan are for convenience of reading only and are not meant to be of
substantive significance and shall not add or detract from the meaning of such
Article, Section, or subpart.

         14.2     GOVERNING LAW. The place of administration of the Plan shall
be conclusively deemed to be within the State of Arizona, and the rights and
obligations of any and all persons having or claiming to have had an interest
under the Plan or under any agreements evidencing Options shall be governed by
and construed exclusively and solely in accordance with the laws of the State of
Arizona without regard to the conflict of laws provisions of any jurisdictions.
All parties agree to submit to the jurisdiction of the state and federal courts
of Arizona with respect to matters relating to the Plan and agree not to raise
or assert the defense that such forum is not convenient for such party.

         14.3     SUCCESSORS AND ASSIGNS. This Plan shall be binding upon and
inure to the benefit of the successors and permitted assigns of the Company,
including, without limitation, whether by way of merger,

                                       14
<PAGE>   15
consolidation, operation of law, assignment, purchase, or other acquisition of
substantially all of the assets or business of the Company, and any and all such
successors and assigns shall absolutely and unconditionally assume all of the
Company's obligations under the Plan.

         14.4     SURVIVAL OF PROVISIONS. The rights, remedies, agreements,
obligations, and covenants contained in or made pursuant to the Plan, any
agreement evidencing an Option and any other notices or agreements in connection
therewith, including, without limitation, any notice of exercise of an Option,
shall survive the execution and delivery of such notices and agreements and the
delivery and receipt of shares of Common Stock and shall remain in full force
and effect.

         IN WITNESS WHEREOF, and as evidence of the adoption of this Plan by the
Company, the Company has caused this Plan to be signed by the undersigned
officer, thereunto duly authorized pursuant to the resolutions of the Board of
Directors adopted on January 14, 1999.

                                        TASER INTERNATIONAL, INCORPORATED

                                        By: /s/ Patrick W. Smith
                                           ----------------------------------
                                            Patrick W. Smith

                                        Its: Chief Executive Officer

                                       15
<PAGE>   16

NAME

                          ELECTION OF STOCK OPTION PLAN

Dear Name,

Pursuant to the meeting of the Board of Directors of TASER International on
January 14, 1999, the company has elected to terminate its former 1998-1999
stock option plan and to implement a new 1999 stock option plan.

You will have the elective to either retain your options from the previous plan
(the 1998-1999 plan) or to agree to have those options cancelled and participate
in the new 1999 stock option plan. You may not participate in both plans.

Currently, you hold the following number of options under previous plans:

                  at a strike price of   per share.
                  at a strike price of  per share

Under the new plan, the company is prepared to offer you:

         _______ shares at a strike price of  _________ per share.

However, the vesting schedule for your new options will start effective Jan. 1,
1999.

Please indicate whether you would like to participate in the old plan or the new
plan by initialing one of the options below:

_____   I would like to maintain my existing options and elect to pass on the
        opportunity to participate in the new plan.

_____   I would like to cancel my existing options from the previous plan and
        participate in the new 1999 plan with options for 100,000 share so stock
        at $0.10 per share.

Sincerely,                                  Agreed,

Rick Smith                                  ----------------------------------
President, TASER International              Phillips Smith
<PAGE>   17
                        INCENTIVE STOCK OPTION AGREEMENT

         THIS OPTION AGREEMENT, made and entered into effective the 15th day of
January, 1999, by and between TASER International, an Arizona corporation
(hereinafter the "Company"), and _____________________, an employee of the
Company, or one or more of its subsidiaries (hereinafter the "Employee").

                                   WITNESSETH

         The Company desires to carry out the purposes of its 1999 Stock Option
Plan, approved by its shareholders and directors on January 14, 1999, by
affording Employee an opportunity to acquire shares of its Common Stock
(hereinafter called the "Shares"), as hereinafter provided.

         NOW, THEREFORE, in consideration of the mutual covenants hereinafter
set forth, and for other good and valuable consideration, the parties hereto
agree as follows:

                                       I.
                                 GRANT OF OPTION

         The Company hereby grants to the Employee the right and option
(hereinafter the "Option") to purchase all, or any part of an aggregate of
____________________________ Shares (such number being subject to adjustment as
provided in Paragraph VIII hereof) on the terms and conditions herein set forth
and in accordance with the terms and restrictions contained in that Subscription
Agreement attached hereto as EXHIBIT A. The Option is intended to qualify as an
Incentive Stock Option as defined in Section 422A(b) of the Internal Revenue
Code of 1986, as amended, and shall be interpreted in a manner consistent
therewith.

                                       II.
                                 PURCHASE PRICE

         Subject to the provisions of Article VII hereof, the purchase price of
the Common Stock covered by the Option shall be _______ per share, which has
been determined to be the fair market value of the Common Stock of the Company
at the date of grant of this Option; provided, however, that if, at the time
this Option is granted, Employee owns stock of the Company representing more
than ten percent (10%) of the voting power of all classes of stock of the
Company (including stock taken into account under the attribution rules of
Section 425(d) of the Internal Revenue Code), the purchase price shall be one
hundred ten percent (110%) of the fair market value of the Shares on the date
the Option is granted.

                                      III.
                      TERM, EXERCISE AND VESTING OF OPTION

         This Option shall expire at the close of business on Dec. 31, 2008,
subject to normal retirement or earlier termination as provided in Paragraphs VI
and VII hereof. The expiration date shall be not more than ten (10) years from
the date this Option is granted; provided, however, that at

                                       2
<PAGE>   18
the time this Option is granted, Employee owns stock of the Company representing
more than ten percent (10%) of the voting power of all classes of stock of the
Company (including stock taken into account under the attribution rules of
Section 425(d) of the Internal Revenue Code), then the expiration date shall not
be more than five (5) years from the date the Option is granted.

         Employee shall be entitled to exercise this Option, and acquire the
shares of Common Stock of the Corporation covered by this Option, as provided in
the following vesting schedule:

<TABLE>
<CAPTION>
                  Period of Time:                             Shares Exercisable:
                  --------------                              ------------------
<S>                                                           <C>
         Grant through December 31, 1999
                                                              -------
         January 1, 2000 through December 31, 2000
                                                              -------
         January 1, 2001 through December 31, 2001
                                                              -------
</TABLE>

Shares shall vest monthly at the end of each month. For example, on June 30,
2000 all shares for 1999 and for the pro-rata through the first half of 2000
shall be considered vested.

                                       IV.
                             EXECUTION OF AGREEMENT

         This offer by the Company to Employee of an Option to purchase capital
stock of the Company shall be void if not agreed to by the Employee within
thirty (30) days hereof, to-wit: on or before Feb. 15, 1999.

                                       V.
                      NON-TRANSFERABILITY OF OPTION RIGHTS

         The Option shall not be transferable, otherwise than by will or the
laws of descent and distribution, and the Option may be exercised, during the
lifetime of the Employee, only by Employee. More particularly (but without
limiting the generality of the foregoing), the Option may not be assigned,
transferred (except as provided above), pledged or hypothecated in any way, and
shall not be subject to the execution, attachment, or similar process. Any
attempted assignment, transfer, pledge, hypothecation, or other disposition to
the Option contrary to the provisions hereof, or the levy of any execution,
attachment, or similar process upon the Option, shall be null and void and
without effect.

                                       VI.
                            TERMINATION OF EMPLOYMENT

         A.       Termination. In the event an Optionee, during his life, ceases
to be an Employee of the Company, or of any subsidiary of the Company, for any
reason, except upon total and permanent disability or death, any Option or
unexercised portion thereof granted to him which is otherwise exercisable shall
terminate on the ninetieth (90th) day following the date the Employee ceases to
be an Employee of the Company.

         B.       Total and Permanent Disability or Death of Employee. In the
event of termination of employment because of total and permanent disability of
Employee, or his death, while an Employee

                                       3
<PAGE>   19
of the Company, or his death within three (3) months after his normal
retirement, any Option or unexercised portion thereof granted to him, if
otherwise exercisable by the optionee, may be exercised by him or by his
personal representative at any time prior to the expiration of twelve (12)
months from the date of death or termination of employment by reason of total
and permanent disability, but not later than the expiration of the option
period.

                                      VII.
                          CHANGES IN CAPITAL STRUCTURE

         If all or any portion of the Option shall be exercised subsequent to
any share dividend, recapitalization, merger, consolidation, exchange of share
or reorganization as a result of which shares of any class shall be issued in
respect to outstanding Common Stock, or if Common Stock shall be changed into
same or a different number of shares of the same or another class or classes,
the person or persons so exercising the Option shall receive, for the aggregate
price paid upon such exercise, the aggregate number and class of shares to which
they would have been entitled if Common Stock (as authorized at the date hereof)
had been purchased at the date hereof for the same aggregate price (on the basis
of the price per share set forth in Paragraph II hereof) and had not been
disposed of. No fractional share shall be issued upon any such exercise and the
aggregate price paid shall be appropriately reduced on account of any fractional
share not issued. No adjustment shall be made in the minimum number of shares
which may be purchased at any one time, as fixed by Paragraph III hereof.

                                      VIII.
                              ADJUSTMENT TO SHARES

         In the event of a stock split, any reorganization, merger,
consolidation, recapitalization, liquidation, reclassification, stock dividend,
stock split, combination of shares, rights offering, extraordinary dividend or
divestiture (including a spin-off), or any other change in the corporate
structure or shares of the Company, the Committee (or, if the Company is not the
surviving corporation in any such transaction, the board of directors of the
surviving corporation) shall make appropriate adjustment (which determination
shall be conclusive) as to the number and kind of securities subject to and
reserved under the Plan and, in order to prevent dilution or enlargement of the
rights of Participants, the number, kind, and exercise price of securities
subject to outstanding Options. Without limiting the generality of the
foregoing, in the event that any of such transactions are effected in such a way
that holders of Common Stock shall be entitled to receive stock, securities, or
assets, including cash, with respect to or in exchange for such Common Stock,
all Participants holding outstanding Options shall upon the exercise of such
Options receive, in lieu of any shares of Common Stock they may be entitled to
receive, such stock, securities, or assets, including cash, as would have been
issued to such Participants if their Options had been exercised and such
Participants had received Common Stock prior to such transaction.

         Notwithstanding the foregoing paragraph, there shall be no adjustment
to the shares authorized pursuant to this Plan for an event described in the
foregoing paragraph which occurs before or simultaneously with the Effective
Date of this Plan.

                                       4
<PAGE>   20
                                       IX.
                           METHOD OF EXERCISING OPTION

         Subject to the terms and conditions of this Option Agreement, the
Option may be exercised by written notice of the Company at its principal place
of business in the State of Arizona. Such notice shall state: Employee's, or
Employee's representative's, election to exercise the Option; the number of
shares in respect to which it is being exercised; and shall be signed by the
person so exercising the Option. Such notice shall be accompanied by the payment
of the full purchase price of such shares and the delivery of such payment to
the Chief Financial Officer of the Company. The certificate for the shares as to
which the Option shall have been so exercised shall be registered in the name of
the person exercising the Option. If the Employee shall so request in the notice
exercising the Option, the certificate shall be registered in the name of the
Employee and another person jointly with right of survivorship, and shall be
delivered as provided above to or upon written order of the person exercising
the Option. In the event the Option shall be exercised pursuant to Paragraph VII
hereof, by any person or persons other than the Employee, such notice shall be
accompanied by appropriate proof of the right of such person to exercise the
Option. This Option shall not be exercised in any manner that would disqualify
the Option as an Incentive Stock Option, as defined in Section 422A(b) of the
Internal Revenue Code 1986, as amended.

                                       X.
                              RESERVATION OF SHARES

         The Company shall, at all times during the term of this Option, reserve
and keep available such number of shares of Common Stock as will be sufficient
to satisfy the requirement of this Option Agreement, and shall pay all original
issue and transfer taxes with respect to the issue and transfer of shares
pursuant hereto, and all other fees and expenses necessarily incurred by the
Company in connection therewith.

                                       XI.
                                   SUBSIDIARY

         As used herein, the term "Subsidiary" shall mean any present or future
corporation which would be a "Subsidiary Corporation" of the Company, as that
term is defined in Section 425 of the Internal Revenue Code of 1986, as amended.

                                      XII.
                           INCENTIVE STOCK OPTION PLAN

         This Incentive Stock Option Agreement is subject to all the terms and
conditions of the Stock Option Plan adopted by the Board of Directors and
Shareholders of the Company on the 14th day of January, 1999. All the terms and
provisions said "Plan" are incorporated herein by reference, and made a part
hereof.

                                       5
<PAGE>   21
                                      XIII.
                             RIGHTS AS STOCKHOLDERS

         The holder of the Option shall not have any of the rights of a
stockholder with respect to the Shares covered by the Option, except to the
extent that one or more certificates for such Shares shall be delivered to him
upon the due exercise of the Option.

                                      XIV.
                          NO REGISTRATION REQUIREMENTS

         The Company shall not be deemed by reason of issuance of any Common
Stock under the Plan to have any obligation to register such shares under the
Securities Act of 1933, as amended, or maintain in effect any registration of
such shares. In addition, unless shares have been so registered, all options
granted under the Plan shall be on the condition that the acquisition of share
thereunder shall be for investment purposes only, and employees acquiring the
shares must bear the economic risk of the investment for an indefinite period of
time, since the shares so acquired cannot be sold unless they are subsequently
registered or an exemption from such registration is available. Employee agrees
that a legend shall be placed on the stock certificate acknowledging the
restrictions on subsequent distribution of the shares.

                                       XV.
                                   EMPLOYMENT

         Nothing in the Plan, and no grant of an option hereunder, shall be
deemed to grant any right of continued employment, or to limit or waive any
rights or the Company to terminate Employee's employment at any time, with or
without cause.

                                      XVI.
                                 GOVERNING LAWS

         This Agreement shall be binding upon, and inure to the benefit of, the
parties hereto and their respective heirs, successors, assigns and
representatives and shall be governed by and construed under the laws of the
State of Arizona.

         IN WITNESS WHEREOF, the company has caused this Incentive Stock Option
Agreement to be executed by its duly-authorized officer and the Employee has
hereunto set his or her hand, all effective the date and year first above
written.

                                        TASER International,
                                        An Arizona corporation

                                        By:
                                              ---------------------------------
                                              Its:     President

ATTEST:                                 EMPLOYEE

------------------------------          ---------------------------------------
Secretary                               Name

                                       6
<PAGE>   22
                               FULL EXERCISE FORM

To Be Executed By The Registered Holder If Optionee
Desires To Exercise The Attached Option in Full.

         The undersigned hereby exercises the right to purchase the ________
shares of Common Stock covered by the within Option at the date of this
subscription and herewith makes payment of the sum of $__________ representing
the Purchase Price of $________ per share in effect at that date. Certificates
for such shares shall be issued in the name of and delivered to the undersigned,
unless otherwise specified by written instructions, signed by the undersigned
and accompanying this subscription.

Dated:
         ------------------

                                     Signature:
                                               --------------------------------
                                     Address:
                                               --------------------------------

                                               --------------------------------

                                               --------------------------------

                                       7
<PAGE>   23
                              PARTIAL EXERCISE FORM

To Be Executed By The Registered Holder If Optionee
Desires To Exercise, In Part, The Attached Option.

         The undersigned hereby exercises the right to purchase ________ shares
of the total shares of Common Stock covered by the within Option at the date of
this subscription and herewith makes payment of the sum of $__________
representing the Purchase Price of $________ per share in effect at that date.
Certificates for such shares and a new Option of like tenor and date for the
balance of the shares not subscribed for shall be issued in the name of and
delivered to the undersigned, unless otherwise specified by written
instructions, signed by the undersigned and accompanying this subscription.

         (The following paragraph need be completed only if the Purchase Price
and number of shares of Common Stock specified in the within Option have been
adjusted pursuant to Paragraph VIII.)

         The shares hereby subscribed for constitute __________ shares of Common
Stock (to the nearest whole share) resulting from adjustment of ______ shares of
the total of ____________ shares of Common Stock covered by the within Option,
as said shares were constituted at the date of the Option.

Dated:
         ------------------

                                     Signature:
                                               --------------------------------
                                     Address:
                                               --------------------------------

                                               --------------------------------

                                               --------------------------------

                                       8<PAGE>   1
                                                                    Exhibit 10.8

                                                                  WARRANT NO. 04

                        TASER INTERNATIONAL, INCORPORATED

                         COMMON STOCK PURCHASE WARRANT

         TASER International, Incorporated, an Arizona corporation, (the
"Company"), hereby agrees that, for value received, Bruce R. Culver, or his
assigns, is entitled, subject to the terms set forth below, to purchase from the
Company at any time or from time to time after the effective date of July 31,
2000, and before 5:00 p.m., Scottsdale, Arizona, time, on July 31, 2005, One
hundred thirty six thousand, three hundred sixty four (136,364) shares of the no
par value Common Stock of the Company (the "Common Stock"), at an exercise price
of $.55 per share, subject to adjustment as provided herein.

         1.       Exercise of Warrant. The purchase rights granted by this
Warrant shall be exercised (in minimum quantities of 100 shares) by the holder
surrendering this Warrant with the form of exercise attached hereto duly
executed by such holder, to the Company at its principal office, accompanied by
payment, in cash or by cashier's check payable to the order of the Company, of
the purchase price payable in respect of the Common Stock being purchased. If
less than all of the Common Stock purchasable hereunder is purchased, the
Company will, upon such exercise, execute and deliver to the holder hereof a new
Warrant evidencing the number of shares of Common Stock not so purchased. As
soon as practicable after the exercise of this Warrant and payment of the
purchase price, the Company will cause to be issued in the name of and delivered
to the holder hereof, or as such holder may direct, a certificate or
certificates representing the shares purchased upon such exercise. The Company
may require that such certificate or certificate contain on the fact thereof a
legend substantially as follows:

         "The transfer of the shares represented by this certificate is
         restricted pursuant to the terms of a Common Stock Purchase Warrant
         dated July 31, 2000, issued by TASER International, Incorporated, a
         copy of which is available for inspection at the offices of TASER
         International, Incorporated. Transfer may not be made except in
         accordance with the terms of the Common Stock Purchase Warrant. In
         addition, no sale, offer to sell or transfer of the shares represented
         by this certificate shall be made unless a registration statement under
         the Federal Securities Act of 1933, as amended, (the "Act"), with
         respect to such shares is then in effect or an exemption from the
         registration requirements of the Act is then in fact applicable to such
         shares."

         2.       Negotiability and Transfer. This Warrant is issued upon the
following terms, to which the holder hereof consents and agrees:

                  (a)      Until this Warrant is duly transferred on the books
         of the Company, the Company may treat the registered holder of this
         Warrant as absolute owner hereof for all purposes without being
         affected by any notice to the contrary.

                  (b)      Each successive holder of this Warrant, or of any
         portion of the rights represented thereby, shall be bound by the terms
         and conditions set forth herein.

                                  Page 1 of 8
<PAGE>   2
         3.       Anti-dilution Adjustments. If the Company shall at any time
hereafter subdivide or combine its outstanding shares of Common Stock, or
declare a dividend payable in Common Stock, the exercise price in effect
immediately prior to the subdivision, combination, or record date for such
dividend payable in Common Stock shall forthwith be proportionately increased in
the case of combination, or proportionately decreased, in the case of
subdivision or declaration of a dividend payable in Common Stock, and each share
of Common Stock purchasable upon exercise of this Warrant, immediately preceding
such event, shall be changed to the number determined by dividing the
then-current exercise price by the exercise price as adjusted after such
subdivision, combination, or dividend payable in Common Stock.

         No fractional shares of Common Stock are to be issued upon the exercise
of the Warrant, but the Company shall pay a cash adjustment in respect of any
fraction of a share which would otherwise be issuable in an amount equal to the
same fraction of the market price per share of Common Stock on the day of
exercise as determined in good faith by the Company.

         In case of any capital reorganization or any reclassification of the
shares of Common Stock of the Company, or in the case of any consolidation with
or merger of the Company into or with another corporation, or the sale of all or
substantially all of its assets to another corporation, which is effected in
such a manner that the holders of Common Stock shall be entitled to receive
stock, securities, or assets with respect to or in exchange for Common Stock,
then, as a part of such reorganization, reclassification, consolidation, merger,
or sale, as the case may be, lawful provision shall be made so that the holder
of the Warrant shall have the right thereafter to receive, upon the exercise
hereof, the kind and amount of shares of stock or other securities or property
which the holder would have been entitled to receive if, immediately prior to
such reorganization, reclassification, consolidation, merger, or sale, the
holder had held the number of shares of Common Stock which were then purchasable
upon the exercise of the Warrant. In any such case, appropriate adjustment (as
determined in good faith by the Board of Directors of the Company) shall be made
in the application of the provisions set forth herein with respect to the rights
and interest thereafter of the holder of the Warrant, to the end that the
provisions set forth herein (including provisions with respect to adjustments of
the exercise price) shall thereafter be applicable, as nearly as reasonably may
be, in relation to any shares of stock or other property thereafter deliverable
upon the exercise of the Warrant.

         When any adjustment is required to be made in the exercise price,
initial or adjusted, the Company shall forthwith determine the new exercise
price, and

         (a) prepare and retain on file a statement describing in reasonable
         detail the method used in arriving at the new exercise price; and

         (b) cause a copy of such statement to be mailed to the holder of the
         Warrant as of a date within ten (10) days after the date when the
         circumstances giving rise to the adjustment occurred.

         4.       Transferability; Registration Rights. Prior to making any
disposition of the Warrant or of any Common Stock purchased upon exercise of the
Warrant, the holder will give

                                   Page 2 of 8
<PAGE>   3
written notice to the Company describing briefly the manner of any such proposed
disposition. The holder will not make any such disposition until (i) the Company
has notified him that, in the opinion of its counsel, registration under the Act
is not required with respect to such disposition, or (ii) a registration
statement covering the proposed distribution has been filed by the Company and
has become effective. The holder then will make any disposition only pursuant to
the conditions of such opinion or registration. The Company agrees that, upon
receipt of written notice from the holder hereof with respect to such proposed
distribution, it will use its best efforts, in consultation with the holder's
counsel, to ascertain as promptly as possible whether or not registration is
required, and will advise the holder promptly with respect thereto, and the
holder will cooperate in providing the Company with information necessary to
make such determination.

         If, at any time one (1) year after the date hereof and prior to the
expiration of seven (7) years from the date hereof, the Company shall propose to
file any registration statement under the Securities Act of 1933, as amended,
covering a public offering of the Company's Common Stock and permitting the
inclusion of shares of selling shareholders, it will notify the holder hereof at
least thirty (30) days prior to each such filing and will include in the
registration statement (to the extent permitted by applicable regulation) the
Common Stock purchased by the holder or purchasable by the holder upon the
exercise of the Warrant to the extent requested by the holder hereof.
Notwithstanding the foregoing, the number of shares of the holders of the
Warrants proposed to be registered hereby shall be reduced pro rata with an
other selling shareholder (other than the Company) upon the request of the
managing underwriter of such offering. If the registration statement or offering
statement filed pursuant to such forty-five (45) day notice has not become
effective within six (6) months following the date such notice is given to the
holder hereof, the Company must again notify such holder in the manner provided
above.

         At any time one (1) year after the date hereof and prior to the
expiration of five (5) years from the date hereof, and provided that a
registration statement on Form S-3 (or its equivalent) is then available to the
Company, and on a one-time basis only, if the holders of 51 % or more of the
Warrants and the shares acquired upon exercise of the Warrants request the
registration of the shares on Form S-3 (or its equivalent), the Company shall
promptly thereafter use its best efforts to effect the registration under the
Securities Act of 1933, as amended, of such shares which such holders request in
writing to be so registered, and in a manner corresponding to the methods of
distribution described in such holders' request.

         All expenses of any such registrations referred 10 in this Section 4,
except the fees of counsel to such holders and underwriting commissions or
discounts, shall be borne by the Company.

         The Company will mail to each record holder, at the last known post
office address, written notice of any exercise of the rights granted under this
Section 4, by certified or registered mail, return receipt requested, and each
holder shall have thirty (30) days from the date of deposit of such notice in
the U.S. Mail to notify the Company in writing whether such holder wishes to
join in such exercise.

         The Company will furnish the holder hereof with a reasonable number of
copies of any prospectus included in such filings and will amend or supplement
the same as required during the period of required use thereof. The Company will
maintain the effectiveness of any registration

                                  Page 3 of 8
<PAGE>   4
statement or the offering statement filed by the Company, whether or not at the
request of the holder hereof, for at least six (6) months following the
effective date thereof.

         In the case of the filing of any registration statement, and to the
extent permissible under the Act and controlling precedent thereunder, the
Company and the holder hereof shall provide cross indemnification agreements to
each other in customary scope covering the accuracy and completeness of the
information furnished by each.

         The holder of the Warrant agrees to cooperate with the Company in the
preparation and filing of any such registration statement or offering statement,
and in the furnishing of information concerning the holder for inclusion
therein, or in any efforts by the Company to establish that the proposed sale is
exempt under the Act as to any proposed distribution.

         5.       Cashless Exercise Option.

                  (a) Provided the Company's Common Stock shall then be traded
         on an exchange or quoted by NASDAQ or otherwise traded as described in
         5(d) hereof, the holder of this Warrant shall have the right to require
         the Company to convert this Warrant (the "Conversion Right"), at any
         time from July 31, 2000 and prior to its expiration, into shares of
         Common Stock as provided for in this Section 5. Upon exercise of the
         Conversion Right, the Company shall deliver to the holder (without
         payment by the bolder of any exercise price) that number of shares of
         Common Stock equal to the quotient obtained by dividing (x), the value
         of the Warrant at the time the Conversion Right is exercised
         (determined by subtracting the aggregate exercise price for the Warrant
         Shares in effect immediately prior to the exercise of the Conversion
         Right from the aggregate Fair Market Value [as determined below] for
         the Warrant Shares immediately prior to the exercise of the Conversion
         Right), by (y), the Fair Market Value of one share of Common Stock
         immediately prior to the exercise of the Conversion Right.

                  (b) The Conversion Right may be exercised by the holder, at
         any time or from time to time, prior to its expiration, on any business
         day, by delivering a written notice (the "Conversion Notice") to the
         Company at the offices of the Company exercising the Conversion Right
         and specifying (i) the total number of shares of Stock the Warrant
         bolder will purchase pursuant to such conversation and (ii) a place and
         a date, not less than five (5) nor more than twenty (20) business days
         from the date of the Conversion Notice, for the closing of such
         purchase.

                  (c) At any closing under Section 5(b) hereof, (i) the holder
         will surrender the Warrant, (ii) the Company will deliver to the holder
         a certificate or certificates for the number of shares of Common Stock
         issuable upon such conversion, together with cash, in lieu of any
         fraction of a share, and (iii) the Company will deliver to the holder a
         new Warrant representing the number of shares, if any, with respect to
         which the Warrant shall not have been exercised.

                  (d) "Fair Market Value" of a share of Common Stock as of a
         particular date (the "Determination Date") shall mean:

                                  Page 4 of 8
<PAGE>   5
                           (i) If the Company's Common Stock is traded on an
                  exchange or is quoted on the National Association of
                  Securities Dealers, Inc., Automated Quotation ("NASDAQ")
                  National Market System, or the Small Cap Market, then the
                  average closing or last sale prices, respectively, reported
                  for the ten (10) business days immediately preceding the
                  Determination Date.

                           (ii) If the Company's Common Stock is not traded on
                  an exchange or on the NASDAQ National Market System, or the
                  Small Cap Market, but is traded in the over-the-counter
                  market, then the average of the closing bid and asked prices
                  reported for the ten (10) business days immediately preceding
                  the Determination Date.

         6.       Notices: The Company shall mail to the registered holder of
the Warrant, at his last known post office address appearing on the books of the
Company, not less than fifteen (15) days prior to the date on which (a) a record
will be taken for the purpose of determining the holders of Common Stock
entitled to dividends (other than cash dividends) or subscription rights or (b)
a record will be taken (or in lieu thereof, the transfer books will be closed)
for the purpose of determining the holders of Common Stock entitled to notice of
and to vote at a meeting of stockholders at which any capital reorganization,
reclassification of shares of Common Stock, consolidation, merger, dissolution,
liquidation, winding up, or sale of substantially all of the Company's assets
shall be considered and acted upon.

         7.       Reservation of Common Stock. A number of shares of Common
Stock sufficient to provide for the exercise of the Warrant upon the basis
herein set forth shall at all times be reserved for the exercise thereof.

         8.       Miscellaneous. Whenever reference is made herein to the issue
or sale of shares of Common Stock, the term "Common Stock" shall include any
stock of any class of the Company other than preferred stock with a fixed limit
on dividends and a fixed amount payable in the event of any voluntary or
involuntary liquidation, dissolution, or winding up of the Company.

         The Company will not, by amendment of its Articles of Incorporation or
through reorganization, consolidation, merger, dissolution, or sale of assets,
or by any other voluntary act or deed, avoid or seek to avoid the observance or
performance of any of the covenants, stipulations, or conditions to be observed
or performed hereunder by the Company, but will, at all times in good faith,
assist, insofar as it is able, in the carrying out of all provisions hereof and
in the taking of all other action which may be necessary in order to protect the
rights of the holder hereof against dilution.

         Upon written request of the holder of this Warrant, the Company will
promptly provide such holder with a then-current written list of the names and
addresses of all holders of Warrants originally issued under the terms of, and
concurrent with, this Warrant.

         The representations, warranties, and agreements herein contained shall
survive the exercise of this Warrant. References to the "holder of" include the
immediate holder of shares purchased on the

                                  Page 5 of 8
<PAGE>   6
exercise of this Warrant, and the word "holder" shall include the plural
thereof. This Common Stock Purchase Warrant shall be interpreted under the laws
of the State of Arizona.

         All shares of Common Stock or other securities issued upon the exercise
of the Warrant shall be validly issued, fully paid, and non-assessable, and the
Company will pay all taxes in respect of the issuer thereof.

         Notwithstanding anything contained herein to the contrary, the holder
of this Warrant shall not be deemed a stockholder (including no right to vote on
any matters coming before the shareholders) of the Company for any purpose
whatsoever until and unless this Warrant is duly exercised.

         IN WITNESS WHEREOF, the Company has caused this Stock Purchase Warrant
to be executed by its duly-authorized officer and the holder hereof has hereunto
set his or her hand, all effective the date and year first above written.

                          TASER International, Incorporated

                          By: /s/ Patrick W. Smith
                              --------------------------------
                              Patrick W. Smith
                          It's: Chief Executive Officer

                          /s/ Bruce R. Culver
                          ------------------------------------
                          Bruce R. Culver

                                  Page 6 of 8
<PAGE>   7
                             WARRANT EXERCISE FORM

                  To be signed only upon exercise of Warrant.

         The undersigned, the holder of the within Warrant, hereby
irrevocably elects to exercise the purchase right represented by such Warrant
for, and to purchase thereunder, _______________ shares of Common Stock of
Taser International, Incorporated, to which such Warrant relates and herewith
makes payment of $ ________________ therefor in cash or by certified check,
and requests that such shares be issues and be delivered to_________________,
the address for which is set forth below the signature of the undersigned.

Date:_____________________________

_____________________________               ____________________________________
(Taxpayer's I.D. Number)                    (Signature)

                                            ____________________________________

                                            ____________________________________
                                            (Address)

                                 ASSIGNMENT FORM

             To be signed only upon authorized transfer of Warrant.

         FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and
transfers unto __________________ the right to purchase shares of Common Stock
of Taser International, Incorporated, to which the within Warrant relates and
appoints ________________ attorney, to transfer said right on the books of Taser
International, Incorporated, with full power of substitution in the premises.

Date:_____________________________

                                            ____________________________________
                                            (Signature)

                                            ____________________________________

                                            ____________________________________
                                            (Address)

                                  Page 7 of 8
<PAGE>   8
                             CASHLESS EXERCISE FORM

        (To be executed upon exercise of Warrant pursuant to Section 5.)

         The undersigned hereby irrevocably elects a cashless exercise of the
right of purchase represented by the within Common Stock Purchase Warrant for,
and to purchase thereunder, ______________ shares of Common Stock, as provided
for in Section 5 therein.

         If said number of shares shall not be all the shares purchasable under
the within Common Stock Purchase Warrant, a new Warrant is to be issued in the
name of said undersigned for the balance remaining of the shares purchasable
thereunder rounded up to the next higher number of shares.

         Please issue a certificate or certificates for such Common Stock in the
name of, and pay any cash for any fractional shares to:

NAME:           ___________________________________________
                (Please Print Name)

ADDRESS:        ___________________________________________

                ___________________________________________

SOCIAL SECURITY NUMBER:    ________________________________

SIGNATURE:                 ________________________________

         NOTE: The above signature should correspond exactly with the name on
         the first page of this Common Stock Purchase Warrant or with the name
         of the assignee appearing in the assignment form on the preceding page.

                                  Page 8 of 8

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