Document:

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                                                                   Exhibit 10.20

                                SERVICE AGREEMENT

                             WESTERN RESOURCES, INC.
                                       and
                              PROTECTION ONE, INC.

     THIS SERVICE AGREEMENT (together with one or more Exhibits which may be
incorporated into this agreement from time to time, the "Agreement") is made and
entered into as of this 1st day of April, 1999 by and between WESTERN RESOURCES,
INC, a Kansas corporation ("Western"), and PROTECTION ONE, INC., a Delaware
corporation ("Protection One").

     WHEREAS, Protection One has requested that Western assist it by providing
to Protection One and certain of its subsidiaries and affiliates identified in
the respective individual Exhibits which may, from time to time, be attached
hereto (each such entity a "Client Group Member", and collectively the "Client
Group") the services described in the Exhibits hereto (the "Services"), and
Western has agreed to provide such Services to Client Group Members, subject to
the terms and conditions of this Agreement.

     NOW THEREFORE, for and in consideration of the mutual covenants set forth
herein, as well as other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties agree as follows:

     1. Services. Protection One hereby retains Western to cause the Services
        --------
described in Section 1 of each Exhibit to this Agreement to be provided to each
Client Group Member (as defined in Section 3 of such respective Exhibit), and
Western agrees to cause such Services to be provided, subject to the terms and
conditions of this Agreement.

     2. Payment for Services. In exchange for the Services, Protection One shall
        --------------------
cause Western to be paid in accordance with the terms set forth in Section 4 of
each respective Exhibit to this Agreement. Protection One shall be solely
responsible, without right of reimbursement, for the satisfaction of any tax,
other than income tax, imposed by a state or local taxing authority with respect
to, or arising out of, the Services provided under this Agreement or payment
thereof ("Transaction Taxes").

     3. Term and Termination. The term for which a particular Service shall be
        --------------------
provided shall be set forth in Section 2 of each respective Exhibit to this
Agreement.
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                                      -2-

     4. Notices. All notices which are required or may be given pursuant to the
        -------
terms of this Agreement shall be in writing and shall be sufficient in all
respects if given in writing and delivered personally or by registered or
certified mail, return receipt requested, and such notice shall be deemed to be
given on the date hand-delivered or on the third day after the date deposited in
the United States mail, or other comparable commercial delivery system, with
postage or delivery charges thereon prepaid, addressed as follows:

If to Western:                                  If to Protection One:

Rita A. Sharpe                                  John E. Mack III
818 South Kansas                                600 Corporate Pointe
Topeka, Kansas                                  12th Floor
                                                Culver City, California  90230

with copy to:                                   with copy to:
General Counsel

     5. Governing Law. This Agreement shall be governed by and construed
        -------------
according to the internal laws of, and without regard to conflicts of law
provisions, the State of Kansas.

     6. Amendment. This Agreement may be amended only by a writing executed with
        ---------
the same formality as this Agreement.

     7. Contractual Arrangement. It is expressly acknowledged by the parties
        -----------------------
hereto that Western is an independent contractor. Nothing contained herein is
intended or shall be construed to create an employer-employee relationship,
joint venture or partnership between Western and Protection One and/or any
Client Group Member. The parties acknowledge and agree that Protection One will
not withhold from the compensation payable to Western hereunder any sums for
income tax, employment insurance, workers compensation, Social Security, or any
other withholding pursuant to any state or federal law or requirement of any
governmental agency.

     8. Limitations on Liability for Work Performed. Western agrees to perform
        -------------------------------------------
the work in a good and workmanlike manner consistent with the customs and
practices of the industry providing services substantially similar to the
Services. WESTERN EXPRESSLY EXCLUDES ALL OTHER GUARANTEES, WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER. WESTERN WILL NOT BE RESPONSIBLE FOR ANY
INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL, OR OTHER DAMAGES WITH WESTERN'S SOLE
LIABILITY BEING LIMITED TO THE REPAIR AND REASONABLE COSTS OF CORRECTING ANY
ERRORS WHICH ARE ATTRIBUTABLE TO THE WORK OF WESTERN, NOT TO EXCEED IN THE
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                                      -3-

AGGREGATE THE AMOUNTS PAID TO WESTERN WITH RESPECT TO THE APPLICABLE EXHIBIT.

     9. Indemnification. Protection One shall indemnity and hold Western, its
        ---------------
members, directors, officers, employees, parents, affiliates, subsidiaries and
independent contractors ("Indemnitees") harmless against any and all claims,
losses, costs, damages, and expenses including, but not limited to Transaction
Taxes and attorney fees, arising out of or in connection with the services
provided to each Client Group Member by Western hereunder or from any breach by
Western of any provision of this Agreement, or any act, omission or neglect by
Western, or any Indemnitee.

     10. Confidential Information. Western and Protection One, on behalf of
         ------------------------
itself and of each Client Group Member agree that any information received by
either in connection with this contract, which concerns the confidential,
personal, financial or other affairs of the other will be treated in full
confidence and will not be revealed to any other persons, firms or organizations
except as may be required by judicial process, applicable law or regulation.

     11. Entire Agreement. This Agreement contains the entire agreement and
         ----------------
understanding between Protection One and Western and supersedes all prior
agreements and understandings, if any, relating to the subject matter hereof.
Except for those set forth in this agreement, the parties hereby agree that no
obligation or contractual commitment of any kind, other than as specifically set
out in this Agreement (or definitive agreement(s) as maybe entered into between
the parties, if any, including agreements with respect to Additional Services),
shall be deemed to exist between the parties with respect to subject matter
hereof, and none of Protection One, and any Client Group Member, or Western
shall be under any legal obligation of any kind whatsoever to enter into any
transaction or agreement by virtue of this Agreement.

     12. Third Party Beneficiaries. There are no third party beneficiaries,
         -------------------------
express or implied, intended or unintended, to this Agreement.

     13. Binding Effect and Assignment. This Agreement and the rights and
         -----------------------------
obligations under this Agreement shall not be assignable or transferable by the
parties (including by operation of law in connection with a merger,
consolidation or sale of all or substantially all the assets of a party) without
the prior written consent of the other party hereto, except that Western may
assign and transfer its rights and obligations under this Agreement to an
affiliate of Western without such written consent; provided any such assignment
or transfer shall not release Western Resources of its obligations hereunder.
Western will provide prompt notice to Protection One of any such assignment and
transfer. All the terms and provisions of this Agreement shall be binding upon
and inure to the benefit of and be enforceable by the respective successors and
assigns of the parties hereto, whether so expressed or not.
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                                      -4-

     14. Prior Negotiations. This Agreement supersedes all prior negotiations
         ------------------
and agreements between the parties hereto relative t the transaction
contemplated by this Agreement, which contains the entire understanding of the
parties hereto.

     15. Waiver of Breach. The waiver by any party hereto of a breach of any
         ----------------
provisions of this Agreement shall not operate as or be construed to be a waiver
of any subsequent breach by any party.

     16. Dispute Resolution. Each of Protection One, for itself and each Client
         ------------------
Group Member, and Western hereby agrees that (i) it shall, promptly upon its
dispute of a matter arising under this Agreement which may involve a claim(s)
against the other, or a Client Group Member, as the case may be, of more than
$5,000 or injunctive relief, provide appropriate written notification ("Notice")
of such ("Dispute") to such other party(ies), (ii) it will attempt in good faith
to resolve the Dispute through meeting(s) and discussions ("Discussions") with
the other party(ies) to the Dispute, such Discussions to be held from time to
time during the 30 calendar days immediately after the date of the Notice, and
(iii) it shall designate in the Notice appropriate senior management to actively
participate in the Discussions for the purpose of resolving the Dispute,
proposed alternative dates and locations of such meetings, and the nature of the
Dispute.

         Protection One, for itself and each Client Group Member, and Western
each hereby agree that none of Protection One, Western, or any Client Group
Member, shall bring a legal action against any Client Group Member, Western, or
Protection One, as the case may be, without first having complied with the
provisions set forth in this Section 16.

     17. Venue. Any dispute not resolved pursuant to paragraph 16 above, if
         -----
raised in litigation, shall be brought in state or federal court having situs in
Shawnee County, Kansas, as the parties agree that venue for all such disputes
shall be in Shawnee County, Kansas.

     18. Invalid Provision. The invalidity or unenforceability of any provision
of this Agreement shall not affect the other provisions hereof, and this
Agreement shall be construed in all respects as if such invalid or uneforceable
provision were omitted.
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                                      -5-

     IN WITNESS WHEREOF, the parties have executed this Agreement on the day and
year first-above written.

WESTERN RESOURCES, INC.                      PROTECTION ONE, INC.

Signature: /s/ Rita A. Sharpe                Signature: /s/ John E. Mack III
           --------------------------                   ---------------------
By:    Rita A. Sharpe                        By:    John E. Mack III
       ------------------------------               -------------------------
Title: Vice President Shared Services        Title: Chief Financial Officer
       ------------------------------               -------------------------
Date:  May 3, 1999                           Date:  May 3, 1999
       ------------------------------               -------------------------<PAGE>

                                                                   Exhibit 10.21

                              TAX-SHARING AGREEMENT

         This Tax-Sharing Agreement is entered into as of November 24, 1997,
between Western Resources, Inc., a Kansas corporation ("Western Resources"), and
Protection One, Inc., a Delaware corporation ("Protection One"), with reference
to the following facts:

         A. Concurrently with the execution and delivery hereof, Protection One
is issuing to Western Resources an aggregate of 68,673,402 shares of the common
stock, par value $.01 per share, of Protection One, pursuant to a Contribution
Agreement dated as of July 30 1997, as amended, by and between Western Resources
and Protection One (the "Contribution Agreement").

         B. As contemplated by the Contribution Agreement, Western Resources and
Protection One desire to enter into this Tax-Sharing Agreement to provide for
the payment of tax liabilities and provide for certain other tax matters.

         NOW, THEREFORE, the parties hereto hereby agree that income taxes (U.S.
and state) shall be accounted for and tax liabilities shall be accounted for
between Protection One and its subsidiaries, on the one hand, and Western
Resources and its subsidiaries, on the other, in accordance with the Tax Sharing
and Allocation Policy, a copy of which is attached hereto, with Protection One
and its subsidiaries constituting a separate "subsidiary group" for purposes of
such policy.

         IN WITNESS WHEREOF, Western Resources and Protection One have executed
this Agreement as of the date first above written.

                                    WESTERN RESOURCES, INC.

                                    By:    /s/ Steve Kitchen
                                           -----------------------------------
                                    Title: Executive Vice President and Chief
                                           Financial Officer
                                           -----------------------------------

                                    PROTECTION ONE, INC.

                                    By:    /s/ James A. Mackenzie
                                           -----------------------------------
                                    Title: President and CEO
                                           -----------------------------------
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[WESTERN
       RESOURCES
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                                ACCOUNTING MANUAL

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SUBJECT                                        SECTION NO.                       PAGE
Tax Sharing and Allocation Policy              6.90                              1 of 3
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<S>                                            <C>                               <C>
SECTION                                        APPROVED BY                       EFFECTIVE DATE
Corporate Accounting Procedures                                                  01/01/94
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SUPERSEDES:                         PAGE                    SECTION NO.                          DATED

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</TABLE>

                        TAX SHARING AND ALLOCATION POLICY

STATEMENT OF FACTS
------------------

         This policy statement will set forth the general guidelines with
respect to the accounting for income taxes (U.S and state) and the allocation of
the consolidated tax liabilities among the subsidiary groups.

         Western Resources, Inc. files a consolidated return with its
subsidiaries, all of which are 100 percent owned. In most jurisdictions, cash
subsidiary group files separate company state income tax returns; however, a
consolidated Kansas return is filed.

Subsidiary Groups
-----------------

         The consolidated U.S. and any consolidated state tax liability shall be
allocated among the following subsidiary groups:

          o    Western Resources, Inc.

          o    Kansas Gas and Electric Company and Subsidiaries

          o    Astra Resources, and Subsidiaries

Tax Provision
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         Each subsidiary group shall calculate its U.S. and state tax provision
and liability on stand-alone separate company basis. Such provision shall be
recorded at the highest U.S. and state tax rate. This means that each subsidiary
group shall calculate its tax liability for their subsidiary group as if it was
a separate entity. The separate calculation includes a separate calculation for
all taxes, including alternative minimum tax (AMT).
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[WESTERN
       RESOURCES
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                                ACCOUNTING MANUAL

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SUBJECT                                        SECTION NO.                       PAGE
Tax Sharing and Allocation Policy              6.90                              2 of 3
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<S>                                            <C>                               <C>
SECTION                                        APPROVED BY                       EFFECTIVE DATE
Corporate Accounting Procedures                                                  01/01/94
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SUPERSEDES:                         PAGE                    SECTION NO.                          DATED

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         Taxes for any foreign subsidiary owned by any member of the group shall
be recorded at the foreign country's tax rate. If any taxes are required to be
recorded in the U.S. for foreign dividends received or for equity earnings in
subsidiary, said income tax provision shall be calculated by the separate group;
however, the foreign tax credit calculation shall be determined by taking into
consideration any consolidated facts that affect taxation of the foreign source
income. For example, any allocation under SEC. 861 shall be based upon the
allocation made at the consolidated level.

         If a subsidiary or a subsidiary group has a taxable loss or tax benefit
for which a benefit will be derived in the consolidated return, P&L benefit,
both U.S. and state (negative provision - receivable from parent), shall be
recorded by the subsidiary group. The provision calculated shall be made
utilizing the maximum U.S. and state rate for the consolidated jurisdiction. If,
after booking the regular tax benefit, it is determined that an AMT tax would
exist on a separate company basis, the AMT tax must also be recorded. The effect
of this is that the current payable is increased and deferred taxes are
decreased. There will be no P&L effect by recording the AMT tax liability.
Payment for the tax benefit is covered under the section entitled Payment of Tax
Benefits.

Tax Return and Estimated Tax Payments
-------------------------------------

         Each subsidiary or subsidiary group shall pay to the parent two days
prior to the payment date their share of any consolidated U.S. (regular or AMT)
or state income tax payment calculated on a stand-alone basis.

         Western Resources shall make all consolidated tax payments to the
taxing authority. State payments for separate state returns shall be paid by the
subsidiary groups directly to the taxing authority.

Payment of Tax Benefits
-----------------------

         If a subsidiary group generates a taxable loss or other tax benefit
which is utilized in the consolidated return, Western Resources shall pay to
that subsidiary the separate return benefit recorded by that subsidiary group.
If a subsidiary or subsidiary group has a separate company or a group
consolidated net operating loss, and that subsidiary or subsidiary group files a
separate consolidated state return not including Western Resources, no payment
shall be made to that subsidiary or subsidiary group for that separate state
NOL.
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[WESTERN
       RESOURCES
             LOGO]
                                ACCOUNTING MANUAL

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<CAPTION>
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SUBJECT                                        SECTION NO.                       PAGE
Tax Sharing and Allocation Policy              6.90                              3 of 3
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<S>                                            <C>                               <C>
SECTION                                        APPROVED BY                       EFFECTIVE DATE
Corporate Accounting Procedures                                                  01/01/94
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SUPERSEDES:                         PAGE                    SECTION NO.                          DATED

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</TABLE>

Adjustments
-----------

         If, upon examination of the consolidated U.S. or state income tax
return an adjustment to the consolidated tax liability is determined, such
adjustment shall be calculated at the subsidiary group level and the tax and
interest paid to Western Resources. Such payment shall include taxes, penalties,
and interest accruable from the due date of the return to the date or the
deficiency payment.

Recordkeeping
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         Western Resources shall maintain detailed records calculating the
consolidated tax liability and benefits payable to subsidiary groups. Such
records shall also include the detailed record of the cash payments or
intercompany charges for payments to and from parent and subsidiary group.

Separate Returns
----------------

         Any separate state returns shall be the responsibilities of the
subsidiary or the subsidiary group, and any payments, both declaration and
return payments, shall be made directly to the taxing authority by such
subsidiary or subsidiary group.

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