Twat on motorbike

Much of their work is in collision investigation, and you rarely see them out and about--there are only 700 for the whole of London, after all! It's patently ridiculous that there should be so few.

Quite. Nice little vicious circle there too - no bugger stopping people from driving dickheadedly, hence lots of accident investigation tying up the people who would otherwise be stopping people from driving dickheadedly and so ever on.