Totally agree Len, most cameras are plain and simple money making machines.
Example, my missus had her Polo written off when it was parked up for the night. The person who hit it drove off without leaving any details. We live just up from a school, the person who hit her car was doing easy over 50mph in a 20 school zone ! Loads of people regularly speed up and down this road.
Have the police put a camera or the council put sleeping policemen in to slow people down - No. But they will happily stick a camera up on a road with no accident problem and nick people doing a couple of mph over the limit. What a joke.
FYI - the missus was only 3rd party so she wasnt covered. The police couldnt prove anything on the person who did it even though we gave them the registration number etc. A 3 grand car reduced to scrap in a minute.