Don't know about the rest of the commonwealth but in Canada and the USA we have the right to challenge the ticket, any traffic ticket, in court. I am starting to advise people to not pay the fine and take it to court. Guarantee every one will get off as it will take years to hear your case with court backlogs. I encourage them to put more cameras up because there is less law on the roads then. And here the intersections have to be posted otherwise it is entrapment. You Brits are lucky. If it were me I would just invent and make a bullshit number plate as they are easy with the black letters on white background. Richard 230 was right on with the coatings. There is also some that will look ok to a cop behind you but at any sort of angle they are distorted.