Eight additional fixed speed cameras have been switched off across the state as the issue with fines widens.
The Forrest Highway point-to-point camera is one of eight fixed speed and red-light cameras to be switched off with concerns of faulty readings growing across the state.
According to The West the Police have admitted another 27 motorists were incorrectly fined for speeding due to faulty readings.
Authorities have conducted a review of 53,000 readings from 11 other faulty cameras, which were taken off the roads in May.
Assistant Commissioner Paul Zanetti told The West none of the 27 drivers had lost their licences or had their cars seized because of the infringements.
He said all those affected by the fines and faulty software would be notified, reimbursed infringement money and have any demerit points wiped.
The decision to switch off more cameras came about because they were purchased from the same company that supplied cameras giving faulty readings.
“We are clearly uncomfortable with the performance of the cameras and that’s why we’ve been very explicit with the company and we’ve taken very firm action in taking them offline,” Mr Zanetti told Seven West.
"No faults had been identified at the other seven sites but because those cameras were bought from the same company, police wanted to cautious."
Mr Zanetti said all the affected and possibly affected cameras would now undergo independent testing before being put back to work.
WA Police have put on extra patrols to monitor areas where cameras are down.
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