This week 14 test cases in Portsmouth Magistrates Court were all found 'not guilty' of speeding due to improper speed limit signing. Many more motorists may have been wrongfully convicted and may ask for their cases to be re-opened.

Paul Smith, founder of SafeSpeed.org.uk, said: "The speed limit signing was sloppy. It didn't meet the regulations. It is right and proper that no one should be convicted of exceeding a speed limit that isn't correctly signed."

"We hear that the local authority and the camera partnership were informed of the deficiencies in the speed limit signage, but carried on enforcing anyway.Perhaps they thought that they were above the law?"

"Any motorist who was convicted or paid a fixed penalty at these locations during the period of faulty signage will be entitled to a refund. Anyone who suffered financially will be entitled to compensation."

"Speed limit enforcement has become a ridiculous game of cat and mouse with the authorities attempting to trap motorists and motorists attempting to avoid the traps. The tragedy is that road safety has been completely forgotten by both sides."

"Driving too fast is dangerous - but the speed limit doesn't tell us what 'too fast' is we need to make a judgement based on the conditions for that."