up the police... !

The anarchist in me loves this:

Originating from Wootton High School, the parent said, students duplicate the license plates by printing plate numbers on glossy photo paper, using fonts from certain websites that "mimic" those on Maryland license plates. They tape the duplicate plate over the existing plate on the back of their car and purposefully speed through a speed camera, the parent said. The victim then receives a citation in the mail days later.

Meanwhile on the more legal front, a precedent (and I'd find the link if I had the time):  a defendant challenged in court the photo taken of his car in the act of failing to stop at a red light. Defendant demanded the right to challenge the photo device itself by interrogating the representative of the manufacturer. Rep did not show. Case was dismissed.