17 October 2007 G4S PLC BLOCK LISTING APPLICATION Application has been made to the UK Listing Authority and to the London Stock Exchange for a block listing of 900,000 ordinary shares of 25p each to trade on the London Stock Exchange and to be admitted to the Official List upon issuance. The shares will rank pari passu with the existing issued shares of G4S plc. The shares under the block listing are to be issued under the Securicor Executive Share Option Scheme. Shares issued under this scheme will also become listed, at regular intervals, on the Copenhagen Stock Exchange. Peter David Company Secretary