lots of loophole to wriggle out of them!
have a drive down past the camera and check it out, what do the speed limit signs look like an where are they placed, what colour is the camera, are there repeater signs (the smaller ones on the opposite side of the road) was it dark?? if so were the street lights on
ie:
legal speed sign:
illegal speed sign:
the size of the signs and the repeaters is critical also, if they are not exactly as per the RTA, they are not enforceable
was there a camera warning sign? how far was it from the camera?? was the camera in plain view (not behind another sign?)
a lot of the signs relating to speed cameras are thrown up in a hurry to get the thing earning money for them so can be outside the law
road markings:
must be as above for a speed limit under 40
the road traffic act lays down the rules for us motorists, but equally the law has to apply to the boys in blue, so if the signage is not to the letter of the law it becomes un-enforcable
I got 2 removed last year. road works on the M6, 50mph limit in force I was doing 56 on one occasion and 61 on another, both at around midnight when the motorway was empty, got both removed on the signage technicalities
was it a gatso or truvelo camera
gatso's have a problem with high sided vehicles/trucks. its well know for them to give innacurate readings if there is ahigh sided vehicle in the frame when the pic was taken
there's also a 6month time limit for a prosecution, so a bit of prevarication on the above, drag your heel in responding etc, and its easy to to quickly run out of time!!
did the NIP arive within 14 days of the offence - not enforceable if it didn't
I do a fair bit of consultancy work for the police and they are well aware of the problems, especially where some forces have sub-contracted out the speed camera 'business' Manchester in particular tend to just drop any cases where the 'offender' gets a bit tricky and starts throwing up the rules