Late last year, before the Vancouver Olympics, there was widespread concern about a special law that was passed that allowed Vancouver police the right to enter homes
and remove signs that the Olympics doesn't like (specifically, "marketing" signs). That seemed to trample on basic civil rights, even as the police tried to downplay the likelihood that they would use such a tool. However, it looks like the London police have been given the exact same rights as well. An anonymous reader sent over an article about the 2012 Olympics in London, which has a section towards the end highlighting similar questionable powers
given to police:
Police will have powers to enter private homes and seize posters, and will be able to stop people carrying non-sponsor items to sporting events.
This has many people questioning why the government has tossed away their civil rights in favor of the now crassly commercial Olympics.