Document:

No. 1                                                        CUSIP No. 524908456

     LEHMAN BROTHERS HOLDINGS INC.
     2,000,000 Warrants
     Nikkei 225(SM) Index Call Warrants
     Expiring May 8, 2007

     This certifies that CEDE & Co., or registered assigns, is the registered
holder of 2,000,000 Nikkei 225(SM) Index Call Warrants Expiring May 8, 2007 (the
"Warrants"). Each Warrant entitles the beneficial owner thereof (each a
"Warrantholder") to receive, subject to the conditions set forth herein and in
the Warrant Agreement (as defined below), from Lehman Brothers Holdings Inc.
(the "Company") an amount in U.S. dollars (rounded down to the nearest
one-hundredth of a cent) (the "Cash Settlement Value") that is the greater of
(A) zero and (B) the product of (i) the quotient obtained by dividing (x) the
amount, if any, by which the Final Index Level for the applicable Valuation Date
exceeds the Strike Price by (y) the Initial Index Level and (ii) the Notional
Amount. In no event shall a Warrantholder be entitled to any interest on any
Cash Settlement Value. Capitalized terms included herein but not defined herein
have the meanings assigned thereto in the Warrant Agreement.

     The "Final Index Level" shall mean the Closing Index Level on the
applicable Valuation Date, subject to postponement if a Market Disruption Event
occurs. If the Calculation Agent determines that on a Scheduled Trading Day that
would otherwise be a Valuation Date a Market Disruption Event has occurred and
is continuing, then the Final Index Level to be used in the calculation of the
Cash Settlement Value in respect of an exercise of Warrants shall be calculated
using as the Valuation Date the next Scheduled Trading Day on which there is not
a Market Disruption Event; provided, however, if a Market Disruption Event
occurs on each of the eight Scheduled Trading Days following the originally
scheduled Valuation Date, then (a) that eighth Scheduled Trading Day shall be
deemed the Valuation Date and (b) the Calculation Agent shall determine the
Final Index Level based upon its good faith estimate of the level of the
Relevant Index on that eighth Scheduled Trading Day.

     The "Valuation Date" for a Warrant will be the first Scheduled Trading Day
following the Exercise Date, subject to postponement as a result of a Market
Disruption Event as described in the Warrant Agreement.

     A "Scheduled Trading Day" shall mean any day on which a Relevant Index is
published by its publisher or otherwise determined by the Calculation Agent
pursuant to this Agreement.

     "Closing Index Level" shall mean, with respect to any Relevant Index on any
particular day, (a) the closing level of the Relevant Index as reported by the
publisher of the Relevant Index on such day, as determined and adjusted by the
Calculation Agent pursuant to the Warrant Agreement, or (b) as otherwise
determined by the Calculation Agent pursuant to the Warrant Agreement if the
Relevant Index has been discontinued or in the circumstances described in the
proviso in the definition of "Final Index Level" above.

     The "Strike Price" shall equal the Initial Index Value.

     The "Initial Index Level" shall mean 11192.17, the Closing Index Level on
May 6, 2005.

     "Notional Amount" shall equal $66.00.

     Subject to the terms of the Warrant Agreement, each Warrant may be
irrevocably exercised in whole but not in part on any Business Day from July 10,
2005 until 3:00 p.m., New York City time, on the earlier of (i) the Business Day
immediately preceding May 8, 2007 (May 8, 2007 being referred to herein as the
"Expiration Date") and (ii) the Business Day immediately preceding the Delisting
Date, if any. Except in the event of automatic exercise (as described in the
Warrant Agreement), each Warrant shall be irrevocably exercised upon receipt by
the Warrant Agent of such Warrant delivered free on the records of the
Depository to the Warrant Agent's Depository Participant Account (entitled
Citibank, N.A. Corporate Trust Warrant Agent Account, No. 9082, or such other
account at the Depository as the Warrant Agent shall designate in writing to the
Company) (the "Warrant Account") pursuant to an Exercise Notice to the Warrant
Agent from a Participant, in the case of Warrants held through the facilities of
the Depository, a Clearstream participant, in the case of Warrants held through
Clearstream, or a Euroclear participant, in the case of Warrants held through
Euroclear, acting, directly or indirectly, on behalf of the Warrantholder;
provided, however, that Exercise Notices are subject to rejection by the Warrant
Agent as provided in the Warrant Agreement. Except with respect to the Limit
Option, an Exercise Notice shall be unconditional.

     This Global Warrant Certificate shall not be valid unless countersigned by
the Warrant Agent.

     The Warrants evidenced by this Global Warrant Certificate are part of a
duly authorized issue of Warrants issued by the Company pursuant to a Warrant
Agreement, dated as of May 11, 2005 (the "Warrant Agreement"), among the
Company, Citibank, N.A. (the "Warrant Agent") and Lehman Brothers Inc. (the
"Calculation Agent"), and is subject to the terms and provisions contained in
the Warrant Agreement, to all of which terms and provisions the Warrantholders,
the entities through which such Warrantholders hold their beneficial interests
in the Warrants and the registered holder of this Global Warrant Certificate
consent by acceptance of this Global Warrant Certificate by the Depository and
which Warrant Agreement is hereby incorporated by reference in and made a part
of this Global Warrant Certificate. A copy of the Warrant Agreement is on file
at the Warrant Agent's Office, which is located at 111 Wall Street, 15th Floor,
New York, New York 10043.

     The Warrants constitute direct, unconditional and unsecured obligations of
the Company and rank equally with the Company's other unsecured contractual
obligations and with the Company's unsecured and unsubordinated debt.

     Subject to the terms of the Warrant Agreement and this Global Warrant
Certificate, and except for Warrants (x) subject to automatic exercise, (y) for
which exercise is delayed pursuant to the Warrant Agreement or (z) which are
held through the facilities of Clearstream or Euroclear, and subject to the
Limit Option, the "Exercise Date" for a Warrant will be (i) the Business Day on
which the Warrant Agent receives the Warrant and Exercise Notice in proper form
with respect to such Warrant, if received at or prior to 3:00 p.m., New York
City

                                        2

time, on such day, or (ii) if the Warrant Agent receives such Warrant and
Exercise Notice after 3:00 p.m., New York City time, on a Business Day, then the
Business Day following such Business Day.

     In the case of Warrants held through the facilities of Clearstream or
Euroclear, except for Warrants subject to automatic exercise, and subject to the
Limit Option, the "Exercise Date" for a Warrant will be (i) the Business Day on
which the Warrant Agent receives the Exercise Notice in proper form with respect
to such Warrant if such Exercise Notice is received at or prior to 3:00 p.m.,
New York City time, on such day; provided that the Warrant is received by the
Warrant Agent by 3:00 p.m., New York City time, on the Valuation Date, or (ii)
if the Warrant Agent receives such Exercise Notice after 3:00 p.m., New York
City time, on a Business Day, then the Business Day following such Business Day;
provided that the Warrant is received by 3:00 p.m., New York City time, on the
Valuation Date relating to exercises of Warrants on the applicable Valuation
Day. In the event that a Warrant is received after 3:00 p.m., New York City
time, on the applicable Valuation Date, then the Exercise Date for such Warrant
will be the day on which such Warrant is received or, if such day is not a
Business Day, the following Business Day. In the case of Warrants held through
the facilities of Euroclear, (a) participants must also transmit, by facsimile,
to the Warrant Agent a copy of the Exercise Notice submitted to Euroclear by
3:00 p.m., New York City time, on the desired Exercise Date and (b) Euroclear
must confirm by telex to the Warrant Agent by 9:00 a.m., New York City time, on
the applicable Valuation Date that the Warrants will be received by the Warrant
Agent on such date; provided that if such telex communication is received after
9:00 a.m., New York City time, on the applicable Valuation Date, the Company
will be entitled to direct the Warrant Agent to reject the related Exercise
Notice or waive the requirement for timely delivery of such telex communication.

     Subject to the terms of the Warrant Agreement and except in the event of
automatic exercise, in connection with any exercise of Warrants, the related
Exercise Notice may specify that such exercise is subject to the condition that
the Final Index Level that would otherwise be used to determine the Cash
Settlement Value of such Warrants shall not have declined by five percent (5%)
or more from the Limit Option Index Level for such Warrants. "Limit Option Index
Level", with respect to any Warrants subject to the Limit Option, means the last
available Closing Index Level as of the applicable Exercise Date. The option of
a Warrantholder to condition an exercise of Warrants as provided in the Warrant
Agreement is herein referred to as the "Limit Option". To be valid, such
election must be specified in the related Exercise Notice. Each of the Warrant
Agent and the Company shall be entitled to rely conclusively on such Exercise
Notice, as received by the Warrant Agent, in determining whether such election
has been validly made.

     The valuation of and payment for any exercised Warrant may be postponed as
a result of a Market Disruption Event or as a result of the exercise of a number
of Warrants exceeding the maximum permissible amount as described herein, in
which case the Warrantholder will receive the Cash Settlement Value determined
as of a later date.

     Subject to the terms of the Warrant Agreement, in the event the Warrants
are delisted from, or permanently suspended from trading on (within the meaning
of the Securities Exchange Act of 1934, as amended), the AMEX and not accepted
at the same time for listing on

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another United States national securities exchange, Warrants not previously
exercised will be deemed automatically exercised on the Delisting Date, in which
case the Warrantholder will receive the Cash Settlement Value.

     All Warrants for which the Warrant Agent has not received an Exercise
Notice in proper form at or prior to 3:00 p.m., New York City time, on the
earlier of (i) the Business Day immediately preceding the Expiration Date or
(ii) the Business Day immediately preceding the Delisting Date, if any, or for
which the Warrant Agent has received an Exercise Notice in proper form but with
respect to which timely delivery of the relevant Warrants has not been made,
will be deemed automatically exercised on such date without any requirement of
an Exercise Notice to the Warrant Agent.

     The Warrants will be issued in denominations of 100 Warrants and whole
multiples of 100.

     Subject to the terms of the Warrant Agreement, all exercises of Warrants
(except in the case of automatic exercise of Warrants) shall be subject, at the
Calculation Agent's option, to the limitation that not more than 400,000
Warrants in total may be exercised on any Exercise Date. No fewer than 500
Warrants may be exercised by a Warrantholder at any one time, except in the case
of automatic exercise of Warrants.

     The Company intends to treat and, by purchasing a Warrant, the
Warrantholder agrees to treat, for all tax purposes, a Warrant as a cash
settlement option within the meaning of section 1234(c) of the Internal Revenue
Code of 1986, as amended.

     Prior to due presentment for registration of transfer, the Company, the
Warrant Agent, and any agent of the Company or the Warrant Agent, may deem and
treat the registered owner hereof as the absolute owner of the Warrants
evidenced hereby (notwithstanding any notation of ownership or other writing
hereon) for any purpose whatsoever, and as the person entitled to exercise the
rights represented by the Warrants evidenced hereby, and neither the Company nor
the Warrant Agent, nor any agent of the Company or the Warrant Agent, shall be
affected by any notice to the contrary.

     The Warrant Agent shall, in accordance with the Warrant Agreement, from
time to time register the transfer of this Global Warrant Certificate in its
records (which may be maintained electronically) to be maintained by it for that
purpose at the Warrant Agent's Office upon surrender hereof, duly endorsed, or
accompanied by a written instrument or instruments of transfer in form
satisfactory to the Warrant Agent, duly executed by the registered holder hereof
or by the duly appointed legal representative or duly authorized attorney
thereof, such signature to be guaranteed by a bank or trust company with a
correspondent office in New York City or by a member of a national securities
exchange. Upon any such registration of transfer, a new Global Warrant
Certificate shall be issued to the transferee.

     The Warrant Agreement and the terms of the Warrants are subject to
amendment, as provided in the Warrant Agreement.

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     THIS GLOBAL WARRANT CERTIFICATE SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

                                       5

     IN WITNESS WHEREOF, Lehman Brothers Holdings Inc. has caused this
instrument to be duly executed.

Dated:         May 11, 2005            LEHMAN BROTHERS HOLDINGS INC.
         ---------------------------

                                       By: /s/  James J. Killerlane III
                                           -------------------------------
                                           Name: James J. Killerlane III
                                           Title: Vice President

Attest:

      /s/  Jin Lee
------------------------------------
Assistant Secretary

Countersigned for authentication
purposes only as of the
date above written:

CITIBANK, N.A.
as Warrant Agent,

By:   /s/ John W. Reasor
    --------------------------------
     Authorized Officer

                                       6FIRST AMENDMENT, dated as of May 10, 2005 (this "Amendment"),
to the CREDIT AGREEMENT, dated as of August 2, 2004 (as otherwise amended,
supplemented or modified from time to time, the "Credit Agreement"), among
ALLIED SECURITY HOLDINGS LLC, a Delaware limited liability company (the
"Borrower"), the lending institutions from time to time parties thereto,
SOVEREIGN BANK, as Syndication Agent, CIT LENDING SERVICES CORPORATION, ING
CAPITAL LLC and PNC BANK, NATIONAL ASSOCIATION, as Co-Documentation Agents, BEAR
STEARNS CORPORATE LENDING INC., as Administrative Agent, and BEAR, STEARNS & CO.
INC. ("Bear Stearns"), as Sole Lead Arranger and Sole Book Running Manager.

     A. The Borrower has requested that the Credit Agreement be amended to,
among other things, provide for new Term Loans C, the proceeds of which will be
used to repay in full all currently outstanding Term Loans. The Borrower has
appointed Bear Stearns to act as Sole Lead Arranger and Sole Book Running
Manager for this Amendment.

     B. Each existing Lender with a Term Loan Commitment or with outstanding
Term Loans (an "Existing Term Loan Lender") that executes and delivers a
signature page to this Amendment specifically in the capacity of a "Continuing
Lender" (a "Continuing Lender") will be deemed upon the First Amendment
Effective Date to have agreed to the terms of this Amendment and to have made a
commitment to make Term Loans C in an aggregate principal amount up to, but not
in excess of, the aggregate principal amount of such Existing Term Loan Lender's
outstanding Term Loans immediately prior to the First Amendment Effective Date
("Existing Term Loans"). Each Existing Term Loan Lender that executes and
delivers this Amendment solely in the capacity as an Existing Term Loan Lender
and not specifically as a Continuing Lender shall be deemed to have agreed to
this Amendment, but will not be deemed by virtue of such execution and delivery
to have undertaken any commitment to make Term Loans C.

     C. Each Person (other than a Continuing Lender in its capacity as such)
that agrees to make Term Loans C (an "Additional Lender") will, on the First
Amendment Effective Date, make such Term Loans C to the Borrower in the manner
contemplated by Section 3. The cash proceeds of any such Term Loans C will be
used solely to repay in full the outstanding principal amount of Existing Term
Loans of Existing Term Loan Lenders (other than any such Existing Term Loans
refinanced pursuant to an exchange thereof for Term Loans C as provided herein)
and to pay fees and expenses in connection with such prepayments and with this
Amendment.

     D. The Required Lenders are willing to effect such amendment (and the other
amendments set forth herein), and the Continuing Lenders and the Additional
Lenders are willing to make Term Loans C as contemplated hereby, in each case on
the terms and subject to the conditions of this Amendment.

     E. Capitalized terms used but not defined herein shall have the meanings
assigned to such terms in the Credit Agreement, as amended hereby.

                  Accordingly, in consideration of the mutual agreements herein
contained and other good and valuable consideration, the sufficiency and receipt
of which are hereby acknowledged, the parties hereto agree as follows:

     Section 1. Amendment of the Credit Agreement. The Credit Agreement is
hereby amended, effective as of the First Amendment Effective Date, as follows:

     (a) Amendment of Section 1.1 (Defined Terms). Section 1.1 is hereby revised
by making the following revisions:

          (i) Deleted Defined Terms. Deleting the following definitions:

               (A) "Term Commitment";

               (B) "Term Loan"; and

               (C) "Term Lender".

          (ii) Term Loans C. Replacing each reference in the Credit Agreement to
the term "Term Loan" and "Term Loans" with the term "Term Loan C" or "Term Loans
C", as applicable.

          (iii) New Term Commitments. Replacing each reference in the Credit
Agreement to the term "Term Commitment" and "Term Commitments" with the term
"New Term Commitment" or "New Term Commitments", as applicable.

          (iv) New Term Lenders. Replacing each reference in the Credit
Agreement to the term "Term Lender" and "Term Lenders" with the term "New Term
Lender" or "New Term Lenders", as applicable.

          (v) New Defined Terms. Inserting the following definitions in the
appropriate alphabetical order therein:

               (A) "Continuing Lender": as defined in the recitals to the First
          Amendment.

               (B) "First Amendment": the First Amendment to the Credit
          Agreement, dated as of May 10, 2005, among the Borrower, the lending
          institutions from time to time parties thereto, SOVEREIGN BANK, as
          Syndication Agent, CIT LENDING SERVICES CORPORATION, ING CAPITAL LLC
          and PNC BANK, NATIONAL ASSOCIATION, as Co-Documentation Agents, BEAR
          STEARNS CORPORATE LENDING INC., as Administrative Agent, and BEAR,
          STEARNS & CO. INC., as Sole Lead Arranger and Sole Book Running
          Manager.

               (C) "First Amendment Effective Date": the date on which the First
          Amendment is made effective in accordance with the terms thereof.

                                       2

               (D) "New Term Commitment": as to any Lender, the commitment of
          such Lender to make Term Loans C hereunder pursuant to Section 3 of
          the First Amendment on the First Amendment Effective Date. The amount
          of each Lender's New Term Commitment is set forth on Schedule A to the
          First Amendment (as appended to the First Amendment on the First
          Amendment Effective Date) or in the Assignment and Acceptance pursuant
          to which such Lender assumed its New Term Commitment, in each case as
          the same may be changed from time to time pursuant to the terms
          hereof.

               (E) "New Term Lender": each Lender that has a New Term Commitment
          or that holds a Term Loan C.

               (F) "Term Loan C": a Loan made to the Borrower in Dollars on the
          First Amendment Effective Date pursuant to Section 3 of the First
          Amendment. On the First Amendment Effective Date, the aggregate
          principal amount of the Term Loans C shall be $202,000,000.

          (vi) Revised Defined Terms. Revising the definitions of the terms set
forth below as follows:

               (A) Applicable Margin. Deleting the defined term "Applicable
          Margin" in its entirety and replacing it with the following:

          "Applicable Margin": for each Type of Loan, the rate per annum set
          forth under the relevant column heading below:

                                            ABR Loans    Eurodollar Loans
                                            ---------    ----------------
                 Revolving Loans and
                   Swingline Loans            3.50%            4.50%
                 Term Loans C                 2.75%            3.75%

                  provided, that so long as no Default or Event of Default has
                  occurred and is continuing, the Applicable Margin with respect
                  to Term Loans C shall be adjusted, on and after the first
                  Adjustment Date (as defined below) occurring after the
                  completion of two full fiscal quarters of the Borrower after
                  the Closing Date, based on changes in the Consolidated
                  Leverage Ratio, with such adjustments to become effective on
                  the date (the "Adjustment Date") that is three Business Days
                  after the date on which the relevant financial statements are
                  delivered to the Lenders pursuant to Section 6.1 and to remain
                  in effect until the next adjustment to be effected pursuant to
                  this paragraph. If any financial statements referred to above
                  are not delivered within the time periods specified in Section
                  6.1, then, until the date that is three Business Days after
                  the date on which such financial statements are delivered, the
                  highest Applicable Margin set forth in the table shown below
                  shall apply. On each Adjustment Date, the Applicable Margin
                  for Term Loans C shall be adjusted to be equal to the
                  Applicable Margin opposite the Pricing Level determined to
                  exist on such Adjustment Date from the financial statements
                  relating to such Adjustment Date.

                                       3

                           Pricing Level      ABR Loans     Eurodollar Loans
                           -------------      ---------     ----------------
                                 I              2.75%             3.75%
                                II              2.50%             3.50%

                  As used herein, the following rules shall govern the
                  determination of Pricing Levels on each Adjustment Date:

                  "Pricing Level I" shall exist on an Adjustment Date if the
                  Consolidated Leverage Ratio for the relevant period of four
                  consecutive fiscal quarters is greater than or equal to 3.5 to
                  1.

                  "Pricing Level II" shall exist on an Adjustment Date if the
                  Consolidated Leverage Ratio for the relevant period of four
                  consecutive fiscal quarters is less than 3.5 to 1.

               (B) Excess Cash Flow. Deleting the word "and" immediately
          preceding the number "(viii)" and inserting the following immediately
          before the period at the end of such definition: ", and (ix) the
          aggregate amount of reasonable and documented cash expenditures made
          in connection with Permitted Acquisitions during such fiscal year".

               (C) L/C Commitment. Replacing the dollar amount "$40,000,000"
          with the dollar amount "$50,000,000".

               (D) Lenders. Replacing the phrase "as defined in the preamble
          hereto" with the phrase "the several banks and other financial
          institutions or entities from time to time parties to this Agreement".

               (E) Required Lenders. Replacing the existing clause (a) with the
          following: "(a) the holders of more than 50% of the aggregate unpaid
          principal amount of the Term Loans C then outstanding and".

          (b) Amendment of Section 2.1 (New Term Commitments). Section 2.1 is
deleted in its entirety and replaced with the following: "Pursuant to the First
Amendment, each New Term Lender severally agrees to make a Term Loan C or Term
Loans C on the First Amendment Effective Date to the Borrower in Dollars, which
Term Loans C shall not exceed for any such Lender the New Term Commitment of
such Lender as of the First Amendment Effective Date, provided that each
Continuing Lender having a New Term Commitment shall make Term Loans C on the
First Amendment Effective Date by exchanging its existing term loans designated
as "Term Loans" under the Credit Agreement immediately prior to the First
Amendment Effective Date for Term Loans C in the manner contemplated by Section
3 of the First Amendment. The Term Loans C may from time to time be Eurodollar
Loans or ABR Loans, as determined by the Borrower and notified to the
Administrative Agent in accordance with Sections 2.2 and 2.12."

                                       4

          (c) Amendment of Section 2.3 (Repayment of Term Loans C). Section 2.3
is deleted in its entirety and replaced with the following:

               (i) The Term Loan C of each New Term Lender shall mature in 21
          consecutive quarterly installments, each of which shall be in an
          amount equal to such Lender's Term Percentage multiplied by the amount
          set forth below opposite such installment:

                  Installment                       Principal Amount
                  -----------                       ----------------

                  June 30, 2005                      $1,250,000
                  September 30, 2005                 $1,250,000
                  December 31, 2005                  $1,250,000
                  March 31, 2006                     $1,250,000
                  June 30, 2006                      $1,250,000
                  September 30, 2006                 $1,250,000
                  December 31, 2006                  $1,250,000
                  March 31, 2007                     $7,500,000
                  June 30, 2007                      $7,500,000
                  September 30, 2007                 $7,500,000
                  December 31, 2007                  $7,500,000
                  March 31, 2008                     $7,500,000
                  June 30, 2008                      $7,500,000
                  September 30, 2008                 $7,500,000
                  December 31, 2008                  $7,500,000
                  March 31, 2009                     $7,500,000
                  June 30, 2009                      $7,500,000
                  September 30, 2009                 $7,500,000
                  December 31, 2009                  $7,500,000
                  March 31, 2010                     $51,625,000
                  June 30, 2010                      $51,625,000 or remainder

          (d) Amendment of Section 4.16 (Use of Proceeds). Section 4.16 is
revised by deleting the first sentence thereof in its entirety and replacing it
with "The proceeds of all Term Loans C funded on the First Amendment Effective
Date shall be used solely to repay in full the outstanding principal amount of
those existing term loans designated as "Term Loans" under the Credit Agreement
immediately prior to the First Amendment Effective Date and to pay fees and
expenses in connection with such prepayments and with the First Amendment."

          (e) Amendment of Section 7.8(h) (Investments). Section 7.8(h) is
revised by replacing the dollar amount "$30,000,000" with the dollar amount
"$60,000,000" and deleting the second proviso.

          (f) Amendment of Section 10.2 (Notices). Section 10.2 is revised by
(i) replacing the words "Christopher Dunne" as the contact person for the
Borrower with "William A. Torzolini", and (ii) replacing the words "Mafco
Holdings Inc." with "MacAndrews & Forbes Holdings Inc.".

                                       5

          (g) Amendment of Exhibits to the Credit Agreement. The Exhibits to the
Credit Agreement are revised by deleting the contents of Exhibit I-1 to the
Credit Agreement in their entirety and replacing them with the contents of
Exhibit A to this Amendment.

          Section 2. Representations and Warranties. To induce the other parties
hereto to enter into this Amendment, the Borrower represents and warrants to
each of the Lenders (including the Additional Lenders) and the Administrative
Agent that, as of the First Amendment Effective Date:

          (a) This Amendment has been duly authorized, executed and delivered by
     the Borrower and this Amendment and the Credit Agreement, as amended
     hereby, constitutes the Borrower's legal, valid and binding obligation,
     enforceable against it in accordance with its terms except as such
     enforceability may be limited by bankruptcy, insolvency, reorganization,
     moratorium or other similar laws affecting creditors' rights generally and
     by general principles of equity (regardless of whether such enforceability
     is considered in a proceeding at law or in equity).

          (b) The representations and warranties set forth in Section 4
     (Representations and Warranties) of the Credit Agreement are, after giving
     effect to this Amendment, true and correct in all material respects on and
     as of the First Amendment Effective Date, except where such representations
     and warranties expressly relate to an earlier date (in which case they were
     true and correct in all material respects as of such earlier date).

          (c) No Default or Event of Default has occurred and is continuing.

          Section 3. Term Loans C. (a) Subject to the terms and conditions
set forth herein, each Continuing Lender and each Additional Lender agrees to
make Term Loans C to the Borrower on the First Amendment Effective Date in
amounts equal to its New Term Commitment (as defined below). Notwithstanding
anything herein or in the Credit Agreement to the contrary, the aggregate
principal amount of the Term Loans C shall not exceed the aggregate principal
amount of the Existing Term Loans immediately prior to the First Amendment
Effective Date. For purposes hereof, a Person shall become an Additional Lender
and a party to the Credit Agreement by executing and delivering to the
Administrative Agent, on or prior to the First Amendment Effective Date, a
signature page to this Amendment specifically in the capacity of an "Additional
Lender" setting forth the amounts of Term Loans C such Person commits to make on
the First Amendment Effective Date. The "New Term Commitment" for any Term Loans
C of (i) any Continuing Lender shall be the principal amount of its Existing
Term Loans or such lesser amount as is determined by Bear Stearns and notified
to such Lender prior to the First Amendment Effective Date and (ii) any
Additional Lender shall be the amount of such commitment set forth on its
signature page hereto or such lesser amount as is allocated to it by Bear
Stearns and notified to it prior to the First Amendment Effective Date. The
aggregate amount of New Term Commitments shall equal the aggregate principal
amount of the Existing Term Loans.

          (b) Each Continuing Lender and each Additional Lender shall make Term
Loans C on the First Amendment Effective Date by (i) exchanging its Existing
Term Loans, if any, for Term Loans C in an equal principal amount (to the extent
the amounts of such Existing

                                       6

Term Loans, if any, do not exceed the New Term Commitment of such Lender) and
(ii) transferring to the Administrative Agent, in the manner contemplated by the
Credit Agreement (including Section 2.2 (Procedure for New Term Loan Borrowing)
thereof), an amount equal to the excess, if any, of its New Term Commitment over
the principal amount of Existing Term Loans, if any, exchanged by it pursuant to
clause (i) above. The Borrower hereby irrevocably directs the Administrative
Agent pursuant to Section 2.10 (Optional Prepayments) of the Credit Agreement to
apply all proceeds of the Term Loans C received hereunder immediately upon the
receipt thereof to prepay outstanding Existing Term Loans. The commitments of
the Additional Lenders and the exchange undertakings of the Continuing Lenders
are several and no such Lender shall be responsible for any other Lender's
failure to make or acquire by exchange any Term Loans C.

          (c) The obligations of each Continuing Lender and each Additional
Lender to make Term Loans C on the First Amendment Effective Date are subject to
the satisfaction of the following conditions:

          (i) The Administrative Agent shall have received a certificate of the
     Borrower dated the First Amendment Effective Date, substantially in the
     form of Exhibit B to this Amendment;

          (ii) The Administrative Agent shall have received the executed legal
     opinion of Skadden, Arps, Slate, Meagher & Flom LLP, counsel to the
     Borrower and its Subsidiaries, substantially in the form of Exhibit C to
     this Amendment;

          (iii) Each Subsidiary Guarantor that has not executed and delivered
     this Amendment shall have entered into a written instrument substantially
     in the form of Exhibit D to this Amendment pursuant to which it confirms
     that it consents to this Amendment and that the Security Documents to which
     it is party will continue to apply in respect of the Credit Agreement, as
     amended hereby, and the Obligations thereunder;

          (iv) Bear Stearns shall be satisfied that the Borrower has made the
     payments referred to in Section 3(e) of this Amendment or is making such
     payment on the First Amendment Effective Date with the cash proceeds of the
     Term Loans C and such other funds of the Borrower as may be required; and

          (v) The conditions to effectiveness of this Amendment set forth in
     Section 4 shall have been satisfied.

          (d) All Borrowings of Term Loans C made on the First Amendment
Effective Date will have initial Interest Periods ending on the same dates as
the Interest Periods applicable at such time to the Existing Term Loans, and the
Eurodollar Rate applicable to such Term Loans C during such initial Interest
Periods will be the same as that applicable at such time to the Existing Term
Loans being refinanced. The Borrower will not be required to make any payments
to Existing Term Loan Lenders under Section 2.15 (Computation of Interest and
Fees) of the Credit Agreement in respect of the repayment of Existing Term Loans
on the First Amendment Effective Date pursuant to their exchange for Term Loans
C.

                                       7

          (e) On the First Amendment Effective Date, the Borrower shall apply
the cash proceeds of the Term Loans C and such other amounts as may be necessary
to (i) prepay in full all Existing Term Loans (other than those that are
exchanged for Term Loans C as provided herein), (ii) pay all accrued and unpaid
interest and fees, if any, on all Existing Term Loans, (iii) pay to each
Existing Term Loan Lender all amounts payable pursuant to Section 2.15
(Computation of Interest and Fees) of the Credit Agreement as a result of the
prepayment of such Lender's Existing Term Loans (other than any portion thereof
that is exchanged for Term Loans C as provided herein) on the First Amendment
Effective Date and (iv) pay all other Obligations then due and owing to the
Existing Term Loan Lenders, in their capacity as such, under the Credit
Agreement.

          (f) The Required Lenders hereby waive the requirements of Section 2.10
(Optional Prepayments) of the Credit Agreement solely to the extent that such
Section requires any notice of prepayment to be given in respect of the Existing
Term Loans to be prepaid on the First Amendment Effective Date. Notwithstanding
that the Existing Term Loans shall be refinanced in full on the First Amendment
Effective Date, the provisions of the Credit Agreement with respect to
indemnification, reimbursement of costs and expenses, increased costs and break
funding payments (other than as set forth in Section 3(d) of this Amendment)
will continue in full force and effect with respect to, and for the benefit of,
each Existing Term Loan Lender in respect of such Lender's Existing Term Loans
existing under the Credit Agreement prior to the First Amendment Effective Date.

          Section 4. Effectiveness of Amendment. The effectiveness of this
Amendment and the occurrence of the First Amendment Effective Date are subject
to receipt by the Administrative Agent (or its counsel) of duly executed
counterparts of this Amendment that, when taken together, bear the signatures of
(a) the Borrower, (b) the Required Lenders and (c) each of the Continuing
Lenders and each of the Additional Lenders.

          Section 5. Effect of Amendment. Except as expressly set forth herein,
this Amendment shall not by implication or otherwise limit, impair, constitute a
waiver of or otherwise affect the rights and remedies of the Lenders or the
Administrative Agent under the Credit Agreement or any other Loan Document, and
shall not alter, modify, amend or in any way affect any of the terms,
conditions, obligations, covenants or agreements contained in the Credit
Agreement or any other provision of the Credit Agreement or of any other Loan
Document, all of which are ratified and affirmed in all respects and shall
continue in full force and effect. Nothing herein shall be deemed to entitle the
Borrower to a further consent to, or a further waiver, amendment, modification
or other change of, any of the terms, conditions, obligations, covenants or
agreements contained in the Credit Agreement or any other Loan Document in
similar or different circumstances.

          Section 6. Fees; Costs and Expenses. The Borrower agrees to pay to
each Lender that executes this Amendment, a fee equal to 0.10% of such Lender's
Commitment (before giving effect to Section 3(a) of this Amendment), which fee
shall be payable on the First Amendment Effective Date. The Borrower further
agrees to reimburse Bear Stearns for its reasonable out of pocket expenses in
connection with this Amendment, including the reasonable fees, charges and
disbursements of their counsel to the extent provided for in Section 10.5
(Payment of Expenses and Taxes) of the Credit Agreement.

                                       8

          Section 7. Counterparts. This Amendment may be executed in any number
of counterparts and by different parties hereto in separate counterparts, each
of which when so executed and delivered shall be deemed an original, but all
such counterparts together shall constitute but one and the same instrument.
Delivery of any executed counterpart of a signature page of this Amendment by
facsimile transmission shall be as effective as delivery of a manually executed
counterpart hereof.

          Section 8. Applicable Law. THIS AMENDMENT SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

          Section 9. Headings. The headings of this Amendment are for purposes
of reference only and shall not limit or otherwise affect the meaning hereof.

                                       9

                  IN WITNESS WHEREOF, the parties hereto have caused this
Amendment to be duly executed by their respective officers as of the day and
year first above written.

                          ALLIED SECURITY HOLDINGS LLC

                                            By: /s/ William A. Torzolini
                                               -----------------------
                                                 Name: William A. Torzolini
                                                 Title: Chief Financial Officer

                             BEAR STEARNS CORPORATE LENDING INC.,
                             as Administrative Agent

                                by /s/ Victor Bulzacchelli
                                   ------------------------------------
                                   Name: Victor Bulzacchelli
                                   Title: Vice President

                                                               SIGNATURE PAGE TO
                                                                 FIRST AMENDMENT
                                                       DATED AS OF MAY 10, 2005,
                                                         TO THE CREDIT AGREEMENT
                                                      DATED AS OF AUGUST 2, 2004

To approve First Amendment*:

---------------------------------- ------------------------------
Name of Institution:               Name of Institution:

---------------------------------- ------------------------------
AS A CONTINUING LENDER             AS AN ADDITIONAL LENDER

by________________________________ by____________________________
  Name:                              Name:
  Title:                             Title:

                                   New Term Commitment:

                                   $ -----------

------------------------------------------------------------------
Name of Institution:

----------------------------------
AS A LENDER

by_________________________________
     Name:
     Title:

----------------------------------- --------------------------------
*EACH LENDER MUST SIGN SEPARATELY IN EACH CAPACITY IN WHICH IT IS AGREEING TO
THE TERMS OF THIS AMENDMENT.

                                                                     SCHEDULE A
                                                              TO FIRST AMENDMENT

                            NEW TERM LOAN COMMITMENTS
                            -------------------------

Continuing Lenders:
On file with Administrative Agent.                            $194,304,761.92

Additional Lenders:
On file with Administrative Agent.                            $7,695,238.08

                                            TOTAL:            $202,000,000.00
                                            -----

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