A review into speed cameras is being demanded after it emerged that over 500 drivers had unsafe convictions overturned in Lancashire.
It is understood that three members of Lancashire Police staff are now facing disciplinary action and £35,000 in fines have had to be refunded.
Many members of the public are now questioning the number of other unsafe convictions that have gone unnoticed.
The investigation focused on whether a speed camera had been wrongly set up or if paperwork had been wrongly processed at the central unit in Blackburn.
Motoring experts now believe it will be difficult for the police to rebuild the trust of motorists in the area.
Elizabeth Dainton, research manager at the RAC Foundation, said the police should not rely solely on cameras to catch speeders.
Ms Dainton said: ‘We do support the use of speed cameras where correct and appropriate but there needs to be traffic police on the roads to pick up offences such as drink and drug driving.
‘Police will have a struggle on their hands to restore public confidence. Lessons need to be learnt and appropriate training needs to be in place.’
Fylde MP Michael said how the cameras are used must be reviewed.
He told reporters: ‘The Chief Constable has got to do everything he can to put in place policies which reassure motorists that the use of cameras is justified and done by the book in future.
‘If it is not dealt with right, it will undermine the generally good relations police have with the public.’
The Lancashire Evening Post has revealed that there are now 184 officers patrolling the roads in that area – a drop of 13 on the year before and the lowest since 2002.