Apparently, if you impose draconian policing policies that involve arresting more people for trivial non-crimes, then 40% more policemen get assaulted.

It would be a terrible shame if "you should have the right to kill people at will in your house, but not to get a drink at 3AM or go out without ID" police commissioner Sir John Stevens were to become one of them. Indeed, I’d be very nearly as distraught as I was on the day of David Blunkett’s ouster.