Notification of Major Shareholding



14 February 2011





                                    G4S PLC

                       NOTIFICATION OF MAJOR SHAREHOLDING


The company was notified on 11 February 2011 by BlackRock, Inc., that, through a
chain  of controlled  undertakings, it  now holds  voting rights  in the company
amounting to 5% of the company's total voting rights.



Peter David
Company Secretary










For further enquiries, please contact:
Helen Parris - Director of Investor Relations               +44 (0) 1293 554423

Media enquiries:
Kevin Smith - Citigate Dewe Rogerson        +44 (0) 7973 672649


Notes to Editors:


G4S is the world's leading security solutions group, specialising in outsourcing
of  business processes in sectors where security and safety risks are considered
a  strategic threat.   G4S is  the largest  employer quoted  on the London Stock
Exchange  and has  a secondary  stock exchange  listing in  Copenhagen.  G4S has
operations in more than 120 countries and more than 625,000 employees.  For more
information on G4S, visitwww.g4s.com .





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