
 Great Britain: The torch relay leg held in London, the host city of the 2012 Summer Olympics, on April 6 began at Wembley Stadium, passed through the City of London, and eventually ended at O2 Arena in the eastern part of the city. The 48 km (30 mi) leg took a total of seven and a half hours to complete, and attracted protests by pro-Tibetan independence and pro-Human Rights supporters, prompting changes to the planned route and an unscheduled move onto a bus, which was then briefly halted by protestors. Home Secretary Jacqui Smith has officially complained to Beijing Organising Committee about the conduct of the tracksuit-clad Chinese security guards. The Chinese officials, seen manhandling protesters, were described by both the London Mayor Ken Livingstone and Lord Coe, chairman of the London Olympic Committee as "thugs". A Metropolitan police briefing paper revealed that security for the torch relay cost <answer>£750,000</answer> and the participation of the Chinese security team had been agreed in advance, despite the Mayor stating, "We did not know beforehand these thugs were from the security services. Had I known so, we would have said no."
How much did security cost for the torch relay in London?
£750,000