Holding(s) in Company

Reliance Security Group PLC
12 March 2007



TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:

Reliance Security Group plc


2. Reason for the notification (please place an X inside the appropriate 
bracket/s):


An acquisition or disposal of voting rights: ( )


An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: ( )


An event changing the breakdown of voting rights: ( )


Other (please specify) : ( X )

Transitional Provision 7 of the Disclosure and Transparency Rules pursuant to 
which the disclosure is being made


3. Full name of person(s) subject to the notification obligation:

The Goldman Sachs Group, Inc


4. Full name of shareholder(s) (if different from 3.) :

Goldman Sachs International


5. Date of the transaction (and date on which the threshold is crossed or
reached if different):

02 March 2007


6. Date on which issuer notified:

09 March 2007


7. Threshold(s) that is/are crossed or reached:

9%


8. Notified details:

Not Applicable


A: Voting rights attached to shares

Class/type of shares if possible using     Situation previous to the Triggering
the ISIN CODE                                          transaction

                                          Number of       Number of voting
                                          shares          Rights

GB0007321325                             2,104,564             2,104,564 (9.78%)

Resulting situation after the triggering transaction

Class/type of shares if      Number of    Number of voting      % of voting
possible using the ISIN CODE shares       rights                rights

                             Direct       Direct       Indirect Direct  Indirect

GB0007321325                  1,980,925    1,980,925             9.21%


B: Financial Instruments

Resulting situation after the triggering transaction

Type of     Expiration Exercise/     Number of voting rights that may   % of
financial   Date       Conversion    be acquired if the instrument is   voting
instrument             Period/ Date  exercised/ converted.              rights





Total (A+B)


Number of voting rights                      % of voting rights

         1,980,925                                9.21%


9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable :

The interest in 1,980,925 shares arose from a beneficial interest held by
Goldman Sachs International, a wholly-owned indirect subsidiary of GS Inc. These
shares are, or will be, registered at CREST in account CREPTEMP.


Proxy Voting:


10. Name of the proxy holder:

Not Applicable


11. Number of voting rights proxy holder will cease to hold:

Not Applicable


12. Date on which proxy holder will cease to hold voting rights:

Not Applicable


13. Additional information:

Not Applicable


14. Contact name:

Jeremy Simon


15. Contact telephone number:

01895 205 003



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