Transaction in Own Shares

London Security PLC
17 May 2004


LONDON SECURITY PLC (the 'Company')


17 MAY 2004


PURCHASE OF OWN SECURITIES


London Security plc announces that on 14 May 2004 the Company purchased for
cancellation 4,000 ordinary shares of 10p each at a price of 1350p per share.


The issued share capital of the Company is now 14,467,316 ordinary shares.


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