London Security PLC 21 January 2005 London Security plc ("the Company") 21 January 2005 PURCHASE OF OWN SECURITIES London Security plc announces that on 20th January 2005 it purchased for cancellation 1,500 ordinary shares of 10 pence each at a price of £13.80 per share. The issued share capital of the Company is now 14,461,816 shares. This information is provided by RNS The company news service from the London Stock Exchange