Actually, Ace, the real reason why they are called Safety Cameras is because they are usually maintained in nice big warm vans, where several policemen at once can shelter in perfectly safety instead of having to go out on the dangerous pavements, where they might be frightened by the sight of a mugging, a burglary, or a bunch of drunken yobbos harassing an old woman, or any of those other activities which it is better for the wise poilceman to avoid