I don't have a camera on my helmet (whiich I suppose I could rectify) and licence plates can be dirty (little more difficult). I have enough problems with the ocassional ejit trying to spook me by blasting a horn and shouting at me or waving their arm out of the window as they speed past without putting a big target on my back. Plus I've had things like oil being stolen from the tank in my garden and the police didn't even call out when I reported it. Just because you hand the police a conviction on a plate doesn't mean they'll do anything about it.
