@M_W - ANPR is not an answer
Have a rummage around on the Pepipoo forums for ANPR related threads. As well as plenty of systemic failures, you may also find things from parking companie's boneheaded belief their systems are infallible all the way to doctored photos and evidential pictures of signs (but taken in different car parks). You really couldn't make some of it up.
Biting the hand that feeds IT
