Document:

EXHIBIT 10.48

Option No.

                           HIENERGY TECHNOLOGIES, INC.
                             STOCK OPTION AGREEMENT

         TYPE OF OPTION (CHECK ONE):  |_| INCENTIVE   |_| NONQUALIFIED

This Stock Option Agreement (the "Agreement") is entered into as of ___________,
by and between HiEnergy Technologies, Inc., a Delaware corporation (the
"Company") and ___________ (the "Optionee") pursuant to the Company's 2003 Stock
Incentive Plan (the "Plan").

1.       GRANT OF OPTION.

The Company hereby grants to Optionee an option (the "Option") to purchase all
or any portion of a total of (___________) shares (the "Shares") of the Common
Stock of the Company at a purchase price of ___________ (___________) per share
(the "Exercise Price"), subject to the terms and conditions set forth herein and
the provisions of the Plan. If the box marked "Incentive" above is checked, then
this Option is intended to qualify as an "incentive stock option" as defined in
Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"). If
this Option fails in whole or in part to qualify as an incentive stock option,
or if the box marked "Nonqualified" is checked, then this Option shall to that
extent constitute a nonqualified stock option.

2.       VESTING OF OPTION.

2.1.     VESTING SCHEDULE.

The right to exercise this Option shall vest in installments, and this Option
shall be exercisable from time to time in whole or in part as to any vested
installment. Vesting will be measured from ___________ (the "Vesting Measurement
Date"). No additional Shares shall vest after the date of termination of
Optionee's "Continuous Service" (the "Service Termination Date"). As used
herein, the term "Continuous Service" has the meaning given in the Plan. Except
as may otherwise be provided in this Agreement, the vesting schedule is as
follows:

<TABLE>
<CAPTION>
On or After:..............................................................................Option Exercisable As To:
-----------                                                                               ------------------------

<S>                                                                                             <C>
First anniversary of Vesting Measurement Date:..................................................____% of the Shares

Last day of each calendar month after such first anniversary....................................____% of the Shares
</TABLE>

The vesting schedule of this Option would result, assuming the Service
Termination Date shall not have theretofore occurred, in this Option being
exercisable as to One Hundred Percent (100%) of the Shares covered by this
Option at the end of the calendar month in which the _______ anniversary of the
Vesting Measurement Date falls.

2.2.     CHANGE IN CONTROL.

In the event of a Change in Control (as defined in the Plan), the Administrator
in its discretion may take one or more of the following actions with respect to
this Option (whether or not then exercisable or vested):

     (i)  provide for the purchase or exchange of this Option for an amount of
          cash or other property having a value equal to the difference, or
          spread, between

          (x)  the value of the cash or other property that the Optionee would
               have received pursuant to such Change in Control transaction in
               exchange for any shares issuable upon exercise of this Option, in
               the amount that the Optionee would have received had the then
               exercisable portion,

<PAGE>

               if any, of this Option been exercised immediately prior to such
               Change in Control transaction, and

          (y)  the Exercise Price,

     (ii) adjust the terms of this Option in a manner determined by the
          Administrator to reflect the Change in Control,

     (iii) cause this Option to be assumed, or new rights substituted therefor,
          by another entity, through the continuance of the Plan and the
          assumption of this Option, or the substitution for this Option of a
          new option of comparable value covering shares of a successor or
          parent corporation, with appropriate adjustments as to the number and
          kind of shares and Exercise Price, in which event the Plan and this
          Option, or the new option substituted therefor, shall continue in the
          manner and under the terms so provided,

     (iv) cancel this Option if this Option is deemed to have no net value on
          the basis described in paragraph 2.2(i) above or if the Option is not
          then exercisable by virtue of this Agreement, as then in effect, or

     (v)  make such other provision as the Administrator may consider equitable.

If the Administrator does not take any of the forgoing actions, this Option
shall terminate upon the consummation of the Change in Control and the
Administrator shall cause written notice of the proposed transaction to be given
to the Optionee not less than fifteen (15) days prior to the anticipated
effective date of the proposed transaction.

3.       TERM OF OPTION.

Optionee's right to exercise any vested portion of this Option shall terminate
upon the first to occur of the following:

3.1.     MAXIMUM TERM.

the expiration of five (5) years from the date of this Agreement;

3.2.     INVOLUNTARY TERMINATION WITHOUT CAUSE.

the expiration of three (3) months from the Service Termination Date if such
termination occurs for any reason other than permanent disability, death,
voluntary resignation; or for "cause;" provided, however, that if Optionee dies
during such three-month period the provisions of subsection 3.5 below shall
apply;

3.3.     VOLUNTARY RESIGNATION.

the expiration of one (1) month from the Service Termination Date if such
termination occurs due to voluntary resignation; provided, however, that if
Optionee dies during such one-month period the provisions of subsection 3.5
below shall apply;

3.4.     PERMANENT DISABILITY.

the expiration of one (1) year from the Service Termination Date if such
termination is due to permanent disability of the Optionee (as defined in
Section 22(e)(3) of the Code);

3.5.     DEATH.

the expiration of one (1) year from the Service Termination Date if such
termination is due to Optionee's death or if death occurs during either the
three-month or one-month period following the Service Termination Date pursuant
to subsection 3.2 or subsection 3.3 above, as the case may be;

3.6.     CHANGE IN CONTROL.

upon the consummation of a "Change in Control" (as defined in the Plan), unless
otherwise provided by the Administrator pursuant to Section 2.2 above; and

3.7.     TERMINATION FOR CAUSE.

upon termination of Optionee's Continuous Service by the Company for "cause,"
defined hereby to mean the performance of those acts identified in Section 2924
of the California Labor Code, at which time this Option, whether or not
exercisable on the Service Termination Date, shall terminate immediately and
become void and of no effect.

<PAGE>

3.8.     BREACH AND NON-COMPETITION.

Notwithstanding the foregoing, the Administrator may cancel, rescind, suspend,
withhold or otherwise limit or restrict any Options or Common Stock, or the
exercise or purchase of any Options or Common Stock, at any time if the Optionee
engages in any "Adverse Activity." For purposes of this Section 3.8, "Adverse
Activity" shall include: (i) the rendering of services for any organization or
engaging directly or indirectly in any business which is or becomes competitive
with the Company, or which organization or business, or the rendering of
services to such organization or business, is or becomes otherwise prejudicial
to or in conflict with the interests of the Company; (ii) the disclosure to
anyone outside the Company, or the use in other than the Company's business,
without prior written authorization from the Company, of any confidential
information or material relating to the business of the Company, acquired by
Optionee either during or after employment with the Company; (iii) the failure
or refusal to disclose promptly and to assign to the Company, all right, title
and interest in any invention or idea, patentable or not, made or conceived by
Optionee during employment by the Company, relating in any manner to the actual
or anticipated business, research or development work of the Company; (iv)
activity that results in termination of Optionee's Continuous Service for
"cause," defined here to mean those acts identified in Section 2924 of the
California Labor Code; (v) any material violation of any terms or provisions of
this Agreement; or (vi) any attempt directly or indirectly to induce any
employee of the Company to be employed or perform services elsewhere or any
attempt directly or indirectly to solicit the trade or business of any current
or prospective customer, supplier or partner of the Company. In the event
Optionee engages in Adverse Activity prior to, or during the six (6) months
after, any exercise, payment or delivery pursuant to an Option Agreement, such
exercise, payment or delivery may be rescinded at the sole election of the
Company within two years thereafter. In the event of any such rescission, the
Optionee shall pay to the Company the amount of any gain realized or payment
received as a result of the disposition of Shares or Options, in such manner and
on such terms and conditions as may be required, and the Company shall be
entitled to set-off against the amount of any such gain any amount owed to the
Optionee by the Company.

4.       EXERCISE OF OPTION.

4.1.     PERSONS PERMITTED TO EXERCISE OPTION.

This Option may be exercised in whole or in part only by the Optionee or by a
Successor designated in Section 5 below.

4.2.     EXERCISE AS TO VESTED PORTION OF OPTION.

This Option may be exercised only on or after the vesting of any portion of this
Option in accordance with Section 2 above, and only as to the cumulative amount
vested at the date of exercise, except pursuant to provisions made, if any, by
the Administrator pursuant to subsection 4.5 below. 4.3. NO EXERCISE AFTER
TERMINATION.

This Option may not be exercised at the time of, or any time after, termination
of this Option in accordance with Section 3 above.

4.4.     MECHANICS OF EXERCISE.

Exercise of this Option shall be made by delivery of the following to the
Company at its principal executive offices:

     (a)  a written notice of exercise which identifies this Agreement and
          states the number of Shares then being purchased (but no fractional
          Shares may be purchased);

     (b)  a check or cash in the amount of the Exercise Price (or payment of the
          Exercise Price in such other form of lawful consideration as the
          Administrator may approve from time to time under the provisions of
          the Plan);

     (c)  a check or cash in the amount reasonably requested by the Company to
          satisfy the Company's withholding obligations under federal, state or
          other applicable tax laws with respect to the taxable income, if any,
          recognized by the Optionee in connection with the exercise of this
          Option (unless the Company and Optionee shall have made other
          arrangements for deductions or withholding from Optionee's wages,
          bonus or other compensation payable to Optionee, or by the withholding
          of Shares issuable upon exercise of this Option or the delivery of
          Shares owned by the Optionee in

<PAGE>

          accordance with the provisions of the Plan, provided such arrangements
          satisfy the requirements of applicable tax laws); and

     (d)  a letter, if requested by the Company, in such form and substance as
          the Company may require, setting forth the investment intent of the
          Optionee, or of a Successor designated in Section 5, as the case may
          be.

A check shall be considered payment only when honored by the bank against which
it is drawn upon first presentment.

4.5.     EXERCISE PRIOR TO VESTING; PURCHASE OF RESTRICTED STOCK.

The Administrator also has discretion, but not the obligation, to permit this
Option to be exercised as to the unvested portion prior to vesting, and in that
case to deliver Restricted Shares to the Optionee upon exercise of this Option.
The Administrator's determination to permit exercise of the unvested portion of
this Option shall be evidenced by the Company's and the Optionee's mutual
execution and delivery of a Restricted Stock Purchase Agreement in form and
substance determined by the Administrator, having the same or a different
Vesting Measurement Date and vesting schedule, as the Administrator and the
Optionee may agree.

5.       TRANSFERS ON DEATH OF OPTIONEE; RESTRICTIONS ON LIFETIME ASSIGNMENTS.

Any attempt to sell, pledge, assign, hypothecate, transfer or dispose of this
Option in contravention of this Agreement or the Plan shall be void and shall
have no effect.

5.1.     NO ASSIGNMENT OF INCENTIVE STOCK OPTIONS.

If and to the extent that this Option comprises an incentive stock option, this
Option can be assigned or transferred (subject to all other restrictions in this
Agreement) only as follows:

         (a)  the rights of the Optionee under this Agreement may not be
              assigned or transferred except by will or by the laws of descent
              and distribution,

         (b)  this Option may be exercised during the lifetime of the Optionee
              only by such Optionee;

         (c)  if the Optionee's Continuous Service terminates as a result of his
              or her death, and provided Optionee's rights hereunder shall have
              vested pursuant to Section 2 hereof, Optionee's legal
              representative, his or her legatee, or the person who acquired the
              right to exercise this Option by reason of the death of the
              Optionee (with regard to incentive stock options, each
              individually, a "Successor") shall succeed to the Optionee's
              rights and obligations under this Agreement; and

         (d)  after the death of the Optionee, only a Successor may exercise
              this Option.

         In the context of incentive stock options, the term "Successor" refers
         to each of the transferees, successors or assigns described in this
         subsection 5.1.

5.2.     LIMITED ASSIGNABILITY OF NONQUALIFIED STOCK OPTIONS.

If and to the extent that this Option comprises a nonqualified stock option,
this Option can be assigned or transferred (subject to all other restrictions in
this Agreement) only as follows:

         (a)  the rights of the Optionee under this Agreement may be assigned or
              transferred by will or by the laws of descent and distribution,
              and Optionee's legal representative, his or her legatee, or the
              person who acquired the right to exercise this Option by reason of
              the death of the Optionee shall succeed to the Optionee's rights
              and obligations under this Agreement, and

         (b)  the rights of the Optionee under this Agreement also may be
              assigned and transferred by the Optionee for estate planning
              purposes to members of the immediate family of the Optionee,
              including for this purpose, but not limited to, spouses, parents,
              descendants, brothers and sisters, or to trusts established for
              the benefit of such persons.

         In the context of nonqualified stock options, the term "Successor"
         refers to each of the transferees, successors or assigns described in
         this subsection 5.2.

<PAGE>

6.       REPRESENTATIONS AND WARRANTIES OF OPTIONEE.

6.1.     INVESTMENT INTENT AS TO OPTIONS.

Optionee represents and warrants that this Option is being acquired by Optionee
for Optionee's personal account, for investment purposes only, and not with a
view to the distribution, resale or other disposition thereof.

6.2.     INVESTMENT INTENT AS TO SHARES.

Optionee acknowledges that the Company may issue Shares upon the exercise of the
Option without registering such Shares under the Securities Act of 1933, as
amended (the "Act"), on the basis of certain exemptions from such registration
requirement. Accordingly, Optionee agrees that his or her exercise of the Option
may be expressly conditioned upon his or her delivery to the Company of an
investment certificate and agreement including such representations and
undertakings as the Company may reasonably require in order to assure the
availability of such exemptions, including representations, warranties and
agreements that--

     (a) The Optionee is purchasing the Shares solely for the Optionee's own
         account for investment and not with a view to or for sale or
         distribution of the Shares or any portion thereof and not with any
         present intention of selling, offering to sell or otherwise disposing
         of or distributing the Shares or any portion thereof. The Optionee also
         represents that the entire legal and beneficial interest of the Shares
         the Optionee is purchasing is being purchased for, and will be held for
         the account of, the Optionee only and neither in whole nor in part for
         any other person.

     (b) The Optionee has discussed the Company and its plans, operations and
         financial condition with its officers and that the Optionee has
         received all such information as the Optionee deems necessary and
         appropriate to enable the Optionee to evaluate the financial risk
         inherent in making an investment in the Shares of the Company, and has
         received satisfactory and complete information concerning the business
         and financial condition of the Company in response to all inquiries in
         respect thereof.

     (c) The Optionee realizes that the purchase of the Shares will be a highly
         speculative investment.

     (d) The Optionee is able, without impairing the Optionee's financial
         condition, to hold the Shares for an indefinite period of time and to
         suffer a complete loss on the investment.

     (e) The Optionee acknowledges that he is aware that the Shares to be issued
         to him by the Company pursuant to this Agreement have not been
         registered under the Act, and--

         (i)  the Shares must be held indefinitely unless a transfer of them is
              subsequently registered under the Act or an exemption from such
              registration is available;

         (ii) the share certificate(s) representing the Shares will be stamped
              with the legends restricting transfer as specified in this
              Agreement in Section 13 below; and

         (iii) the Company will make a notation in its records of the
              aforementioned restrictions on transfer and legends as described
              in Section 14 below.

     (f) The Optionee understands that the Shares are restricted securities
         within the meaning of Rule 144 promulgated under the Act; that the
         exemption from registration under Rule 144 will not be available in any
         event for at least one year from the date of sale of the Shares to the
         Optionee, and even then will not be available unless (i) a public
         trading market then exists for the Shares of the Company, (ii) adequate
         current public information concerning the Company is then available to
         the public, (iii) the Optionee has been the beneficial owner and the
         Optionee has paid the full purchase price for the Shares at least one
         year prior to the sale, and (iv) other terms and conditions of Rule 144
         are complied with; and that any sale of the Shares may be made by it
         only in limited amounts in accordance with such terms and conditions of
         Rule 144, as amended from time to time.

     (g) Without in any way limiting any of the other provisions of this
         Agreement, Optionee's further agreement that the Optionee shall in no
         event make any disposition of all or any portion of the Shares which
         the Optionee is purchasing unless and until:

         (i)  there is then in effect a Registration Statement under the Act
              covering such proposed disposition and such disposition is made in
              accordance with said Registration Statement; or

         (ii) (A) the Optionee shall have notified the Company of the proposed
              disposition and shall have furnished the Company with a detailed
              statement of the circumstances surrounding the proposed
              disposition, (B) the Optionee shall have furnished the Company
              with an opinion of counsel to the effect that such disposition
              will not require registration of such shares under the Act, and
              (C) such opinion of counsel shall have been concurred in by
              counsel for the Company and the Company shall have advised the
              Optionee of such concurrence.

<PAGE>

     (h) The Optionee represents and warrants that he or she has not engaged in
         any Adverse Activity as defined in Section 3.8.

     (i) The Optionee acknowledges that the Optionee has been furnished with a
         copy of the Plan, has read the Plan and this Agreement, and understands
         that all rights and obligations connected with this Agreement are set
         forth in this Agreement and in the Plan.

7.       ADJUSTMENTS UPON CHANGES IN CAPITAL STRUCTURE.

In the event that the outstanding shares of Common Stock of the Company are
hereafter changed into or exchanged for a different number or kind of shares or
other securities of the Company by reason of a recapitalization, stock split,
combination of shares, reclassification, stock dividend (in excess of two
percent (2%)) or other change in the capital structure of the Company, then
appropriate adjustments shall be made by the Administrator to the number of
Shares subject to the unexercised portion of this Option and to the Exercise
Price per share, in order to preserve, as nearly as practical, but not to
increase, the benefits of the Optionee under this Option, in accordance with the
provisions of the Plan. No fractional share shall be issued under this Option or
upon any such adjustment.

8. NO CREATION OR ENLARGEMENT OF OPTIONEE'S RIGHTS TO CONTINUE IN ANY CAPACITY.

The right of the Company and any Affiliated Company (as defined in the Plan) to
terminate at will the Optionee's services to the Company or any Affiliated
Company at any time (whether by dismissal, discharge or otherwise), with or
without cause, is specifically reserved. Nothing in this Agreement shall
diminish or impair in any manner whatsoever the right or power of the Company or
any Affiliated Company to terminate the Optionee's Continuous Service for any
reason, with or without cause.

9.       RIGHTS AS SHAREHOLDER.

The Optionee (or transferee of this option by will or by the laws of descent and
distribution) shall have no rights as a shareholder with respect to any Shares
covered by this Option until the date of the issuance of a stock certificate or
certificates to him or her for such Shares, notwithstanding the exercise of this
Option.

10.      "MARKET STAND-OFF" AGREEMENT.

Optionee agrees that, if requested by the Company or the managing underwriter of
any proposed public offering of the Company's securities, Optionee will not sell
or otherwise transfer or dispose of any Shares held by Optionee without the
prior written consent of the Company or such underwriter, as the case may be,
during such period of time, not to exceed 180 days following the effective date
of the registration statement filed by the Company with respect to such
offering, as the Company or the underwriter may specify.

11.      RESTRICTIVE LEGENDS.

In addition to all other legends that the Company or its legal counsel consider
appropriate under applicable securities laws, the certificates representing any
Shares purchased pursuant to this Agreement shall bear substantially the
following legend:

--------------------------------------------------------------------------------
          THE SECURITIES REPRESENTED BY THIS CERTIFICATE (INCLUDING ANY
          SECURITIES ISSUABLE ON EXERCISE OR WITH RESPECT TO ANY OTHER RIGHT
          CONNECTED HEREWITH) HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
          OF 1933; THEY HAVE BEEN ACQUIRED BY THE HOLDER FOR INVESTMENT AND MAY
          NOT BE PLEDGED,

<PAGE>

          HYPOTHECATED, SOLD, TRANSFERRED, OR OTHERWISE DISPOSED OF EXCEPT AS
          MAY BE AUTHORIZED UNDER THE SECURITIES ACT OF 1933, AND THE RULES AND
          REGULATIONS PROMULGATED THEREUNDER. IN ADDITION ANY TRANSFEREE OR
          ISSUEE OF SUCH SECURITIES MAY BE REQUIRED TO PROVIDE APPROPRIATE
          INVESTMENT REPRESENTATIONS PRIOR TO ANY SUCH TRANSFER OR ISSUANCE.
          ----------------------------------------------------------------------

12.      STOP-TRANSFER NOTICES.

Optionee understands and agrees that, in order to ensure compliance with the
restrictions referred to herein, the Company may issue appropriate
"stop-transfer" instructions to its transfer agent, if any, and that, if the
Company transfers its own securities, it may make appropriate notations to the
same effect in its own records.

13.      INTERPRETATION.

This Option is granted pursuant to the terms of the Plan, and shall in all
respects be interpreted in accordance therewith. The Administrator shall
interpret and construe this Option and the Plan, and any action, decision,
interpretation or determination made in good faith by the Administrator shall be
final and binding on the Company and the Optionee. As used in this Agreement,
the term "Administrator" shall refer to the committee of the Board of Directors
of the Company appointed to administer the Plan, and if no such committee has
been appointed, the term Administrator shall mean the Board of Directors.

14.      NOTICES.

Any notice, demand or request required or permitted to be given under this
Agreement shall be in writing and shall be deemed given when delivered
personally or three (3) days after being deposited in the United States mail, as
certified or registered mail, with postage prepaid, and addressed, if to the
Company, at its principal place of business, Attention: the Chief Financial
Officer, and if to the Optionee, at his or her most recent address as shown in
the records of the Company.

15.      GOVERNING LAW.

The validity, construction, interpretation, and effect of this Option shall be
governed by the laws of the State of California, excluding any conflicts of law
or choice of law rule or principle that might otherwise refer construction and
interpretation of the plan and such agreements to the substantive law of another
jurisdiction. Optionee hereby agrees to submit to the exclusive jurisdiction and
venue of federal or state courts of Orange County, California, to resolve any
and all issues that may arise out of or relate to this Option.

16.      SEVERABILITY.

Should any provision or portion of this Agreement be held to be unenforceable or
invalid for any reason, the remaining provisions and portions of this Agreement
shall be unaffected by such holding.

17.      ENTIRE AGREEMENT.

This Agreement and the Plan constitute the entire agreement between the parties
with respect to the subject matter hereof and supersede all prior or
contemporaneous written or oral agreements and understandings of the parties,
either express or implied. The option evidenced hereby may, in the discretion of
the Company, also be evidenced by a certificate in such form as the Company may
approve, in which case such option certificate and this Agreement shall evidence
one and the same option, which shall be governed by and construed in accordance
with this Agreement and the Plan.

<PAGE>

18.      AMENDMENT.

The Board shall have full power and authority (subject to certain amendments
requiring shareholder approval pursuant to applicable laws or regulations) from
time to time to alter, amend, suspend or terminate the Plan in any or all
respects as the Board may deem advisable, and to alter this Agreement in ways
which shall not substantially adversely affect or impair the Optionee's rights
under this Agreement No such alteration, amendment, suspension or termination
shall be made which shall substantially affect or impair the rights of any
Optionee under an outstanding Option Agreement without such Optionee's consent.
The Board may alter or amend the Plan to comply with requirements under the Code
relating to Incentive Options or other types of options which give Optionees
more favorable tax treatment than that applicable to Options granted under the
Plan. Upon any such alteration or amendment, any outstanding Option granted
hereunder may, if the Administrator so determines and if permitted by applicable
law, be subject to the more favorable tax treatment afforded to an Optionee
pursuant to such terms and conditions.

19.      COUNTERPARTS.

This Agreement may be executed in any number of counterparts, each of which
shall be deemed to be an original, but all of which together shall constitute
one and the same instrument. Execution and delivery of this Agreement or any
notices, certificates or instruments contemplated herein by fax, facsimile, or
telecopier shall be deemed the execution and delivery of an originally signed
agreement, notice or instrument, as the case may be.

         IN WITNESS WHEREOF, the parties have executed this Stock Option
Agreement as of the date first above written.

                                   "COMPANY"

                                   HIENERGY TECHNOLOGIES, INC.

                                   By:
                                         ---------------------------------------

                                   Name:
                                         ---------------------------------------

                                   Title:
                                         ---------------------------------------

                                   "OPTIONEE"

                                   ---------------------------------------------
                                   (Signature)

                                   ---------------------------------------------
                                   (Type or Print Name)

                                   Address:
                                            ------------------------------------

                                            ------------------------------------EXHIBIT 10.49

                            STOCK PURCHASE AGREEMENT

         This STOCK  PURCHASE  AGREEMENT  ("Agreement")  is dated June 16,  2003
between Yocca Patch & Yocca, LLP ("Purchaser"), and HiEnergy Technologies, Inc.,
a Delaware corporation ("Company").

                  1. PURCHASE AND SALE.  Purchaser agrees to buy and the Company
agrees to sell and issue to Purchaser 300,000 shares of the Company's authorized
and previously unissued common stock, par value $0.001 per share (the "Shares"),
at a  price  of  $0.33  1/3  per  share,  for an  aggregate  purchase  price  of
$100,000.00 (the "Purchase Price").

                  2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
hereby makes the following representations and warranties to the Purchaser:

                  (a) Registered Offering. The offer and sale of the Shares have
been  registered  on  a  Form  SB-2  registration  statement,  Registration  No.
333-101055  ("Registration  Statement"),  which Registration  Statement has been
declared effective by the Securities and Exchange  Commission (the "Commission")
and the  Company  has not  received  notice  that the  Commission  has issued or
intends to issue a stop order with  respect to the  Registration  Statements  or
that the Commission  otherwise has suspended or withdrawn the  effectiveness  of
the Registration  Statements,  either temporarily or permanently,  or intends or
has  threatened  in writing to do so. The Company has delivered to Purchaser the
prospectus that constitutes a part of the Registration Statement.

                  (b)   Organization  and   Qualification.   The  Company  is  a
corporation duly  incorporated,  validly existing and in good standing under the
laws of the State of Delaware with the requisite  corporate  power and authority
to own and use its  properties  and  assets  and to  carry  on its  business  as
currently conducted. The Company is duly qualified to conduct business and is in
good standing as a foreign  corporation or other entity in each  jurisdiction in
which the nature of the business  conducted  or property  owned by it makes such
qualification necessary.

                  (c)  Authorization.  The Company has the  requisite  corporate
power  and  authority  to  enter  into  and  to  consummate   the   transactions
contemplated  by this  Agreement  and  otherwise  to carry  out its  obligations
hereunder.  The execution and delivery of this  Agreement by the Company and the
consummation of the transaction contemplated hereby have been duly authorized by
all  necessary  action  on the part of the  Company  and no  further  action  is
required  by the  Company or its  shareholders  for the  Company to execute  and
consummate  this  Agreement  and  the  transactions  contemplated  hereby.  This
Agreement  has  been  duly  executed  by the  Company  and,  when  delivered  in
accordance with the terms hereof, and assuming the valid execution hereof by the
Purchaser,  will  constitute  the valid and  binding  obligation  of the Company
enforceable against the Company in accordance with its terms, except (a) as such
enforceability  may be  limited by  bankruptcy,  insolvency,  reorganization  or
similar laws affecting creditors' rights generally, (b) as enforceability of any
indemnification and contribution provisions may be limited under the federal and
state  securities  laws and public  policy,  and (c) that the remedy of specific
performance and injunctive and other forms of equitable relief may

<PAGE>

be subject to equitable defenses and to the discretion of the court before which
any proceeding therefor may be brought.

                  (d) No Conflicts.  The execution,  delivery and performance of
this  Agreement  by the  Company  and the  consummation  by the  Company  of the
transactions  contemplated  hereby does not and will not: (i)  conflict  with or
violate any provision of the Company's  certificate of  incorporation  or bylaws
(each as amended through the date hereof),  or (ii) conflict with, or constitute
a default (or an event which with notice or lapse of time or both would become a
default)  under,  or give to others  any  rights of  termination,  amendment  or
acceleration  (with or without  notice,  lapse of time or both) of, any material
agreement  or  indebtedness  to which  the  Company  is a party or by which  any
material property or asset of the Company is bound or affected,  or (iii) result
in a violation of any law, rule, regulation,  order,  judgment,  decree or other
restriction  of any court,  governmental  authority or stock market to which the
Company or the Common Stock is subject.

                  (e)  Issuance  of the Shares.  The Shares are duly  authorized
and,  when  issued and paid for in  accordance  with the terms  hereof,  will be
legally issued,  fully paid and  nonassessable,  free and clear of all liens and
encumbrances  (other  than any that are the result of any action or  inaction of
the Purchaser).

                  (f)  Disclosure.  Neither  the  Company  nor any other  Person
acting on its behalf has provided the  Purchaser or their agents or counsel with
any information  that constitutes or may, in the Company's  opinion,  constitute
material non-public information.  If any such information whatsoever is provided
to  Purchaser,  knowledge  thereof  will not be  imputed  to any of  Purchaser's
partners unless such partner has actual knowledge.

                  (g) Client  Waiver.  The  Company  has had an  opportunity  to
consult  independent  legal counsel and advisors  regarding this Agreement.  The
Company  understands  that the Purchaser cannot advise the Company on whether to
enter into this Agreement to sell Shares. The Company is knowledgeable about the
Purchaser's  financial  interests in this  transaction,  and has determined that
this transaction is in the best interests of the Company,  hereby waives any and
all conflict of interests, and hereby knowingly consents to this transaction.

                  3.  REPRESENTATIONS  AND  WARRANTIES  OF  THE  PURCHASER.  The
Purchaser hereby represents and warrants to the Company as follows:

                  (a)  Organization;   Authorization.  The  Purchaser  has  been
organized  and is in good  standing  under the laws of the  jurisdiction  of its
formation.  The Purchaser has the requisite right,  power and authority to enter
into this Agreement and to consummate the transactions contemplated hereby. Upon
the execution and delivery of this  Agreement,  and assuming the valid execution
thereof by the Company,  this Agreement  shall  constitute the valid and binding
obligation  of the  Purchaser,  enforceable  against the Purchaser in accordance
with its terms,  except (a) as such enforceability may be limited by bankruptcy,
insolvency,   reorganization   or  similar  laws  affecting   creditors'  rights
generally,  (b)  as  enforceability  of  any  indemnification  and  contribution
provisions may be limited under the federal and state securities laws and public

                                        2
<PAGE>

policy, and (c) that the remedy of specific performance and injunctive and other
forms of  equitable  relief  may be  subject to  equitable  defenses  and to the
discretion of the court before which any proceeding therefor may be brought.

                  (b) No Conflicts.  The execution,  delivery and performance of
this  Agreement by the  Purchaser and the  consummation  by the Purchaser of the
transactions  contemplated  hereby  does not and will not (i)  conflict  with or
violate  any  provision  of  the   Purchaser's   or  Company's   certificate  of
incorporation  or bylaws  (each as amended  through  the date  hereof),  or (ii)
conflict  with,  or constitute a default (or an event which with notice or lapse
of time or both would become a default)  under,  or give to others any rights of
termination, amendment or acceleration (with or without notice, lapse of time or
both) of, any material  agreement or  indebtedness  to which the  Purchaser is a
party or by which any  material  property or asset of the  Purchaser is bound or
affected, or (iii) result in a violation of any order, judgment or decree of any
court to which the Purchaser is subject.

                  (c) Investment  Representation.  The Purchaser is not party to
any agreement or arrangement  with respect to a disposition of Shares other than
this  Agreement.  The Purchaser is not registered as a  broker-dealer  under the
Exchange  Act. The Purchaser is purchasing  the Shares for the  Purchaser's  own
account,  for  investment  purposes  only and not with a view to  distribute  or
participate   in  a   distribution   thereof;   provided,   that  the  foregoing
representation  and warranty is not an  agreement  by the  Purchaser to hold the
Shares for any period of time.

                  4. PAYMENT.  On the Closing Day, the Purchaser will credit the
Purchase Price against  accrued legal fees  chargeable by Purchaser to Seller as
if Seller  made a payment of such amount in the  ordinary  course on the Closing
Day. On the Closing  Day, the Company  will  deliver to the  Purchaser,  via the
Purchaser's DTC Accounts through the Depository  Trust Company DWAC system,  the
number of Shares set forth hereinbelow:

                  100,000 shares to DTC #0044 Account # 377 27481 100,000 shares
                  to DTC #0221 Account # UJ38541-HM  100,000 shares to DTC #0221
                  Account # UJ38539-HM

                  The term "Closing Day" shall mean June 17, 2003.

                  5. INTENTIONALLY OMITTED

                  6. INTENTIONALLY OMITTED

                  7. COUNTERPARTS. This Agreement may be executed in two or more
counterparts,  all of which shall be considered  one and the same  agreement and
shall  become  effective  when  counterparts  have been signed by each party and
delivered to the other party.  This Agreement,  once executed by a party, may be
delivered to the other party hereto by facsimile  transmission of a copy of this
Agreement bearing the signature of the party so delivering this Agreement, which
shall be deemed  fully  valid and  binding.  The  parties  also agree to forward
promptly  their  original  signature  on a copy of this  Agreement  to the other
party.

                                        3
<PAGE>

                  8.  ENTIRE  AGREEMENT.  This  Agreement  contains  the  entire
understanding  of the parties  with respect to the matters  covered  herein and,
except as specifically  set forth herein,  neither the Company nor the Purchaser
make any representation,  warranty, covenant or undertaking with respect to such
matters.  No  provision  of  this  Agreement  may be  amended  other  than by an
instrument in writing signed by the Company and Purchaser.

                  9.  SEVERABILITY.  In the  event  that any  provision  of this
Agreement  shall be  determined to be invalid or  unenforceable  by any court of
competent  jurisdiction,  the remainder of this agreement  shall not be affected
thereby,  and any invalid or unenforceable  provision shall be reformed so as to
be valid and enforceable to the full extent permitted by law.

         IN WITNESS WHEREOF,  the parties hereto have caused this Stock Purchase
Agreement to be duly executed by their respective  authorized  signatories as of
the date first indicated above.

                          COMPANY:

                           HIENERGY TECHNOLOGIES, INC.

                            By: /s/ Bogdan C. Maglich
                             -----------------------------------------
                             Name: Bogdan C. Maglich
                          Title: Chairman, Chief Executive Officer and Treasurer

                          PURCHASER:

                            YOCCA PATCH & YOCCA, LLP

                            By: /s/ Nicholas J. Yocca
                             -------------------------------------------------
                             Name: Nicholas J. Yocca
                          Title: Partner

                          Address:
                           19900 MacArthur Blvd., #650
                          Irvine, CA  92612

                                        4

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