British Transport Police Chief Constable Sir Ian Johnston has been appointed head of security for the London 2012 Olympics and Paralympics, responsible for all security within the Games’ venues.
During the Games he will be responsible for overseeing security inside the Olympic venues, villages and transport.
Last month the government approved a further £19m to strengthen Olympic venues against terrorist attacks.
The money is intended to make the venues in Stratford, east London, more blast resilient.
The overall budget for the 2012 Games has been set at £9.325bn.
Johnston, who has 44 years of police service, has become the director of security and resilience for the London Organising Committee for the Olympic Games.