EDIT: just seen Oliver's post, with which I agree heartily. Prizes are on offer for actually spotting a Met traffic officer, though :-(
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.
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.