London sees rise in terror stops:

The Metropolitan Police used section 44 of the Terrorism Act more than 170,000 times in 2008 to stop people in London.

65 arrests, for an arrest rate of .035%, and you'll notice they use "arrests" and not "convictions", which seems like a pretty convincing argument that the London police are using terror as an excuse to harass random citizens.

(Topic picker chose "Monty Python", I'm half-tempted to let that stand...)