More than 100 intersections across Adelaide will be closed to allow testing of red-light cameras after a Supreme Court decision called into question the validity of the traffic control devices.
All unpaid fines issued before the judgement last week, and any offences detected since, have also been put on hold as police seek legal advice.
The judgement ruled a 2018 red light camera fine invalid because it found police camera testing flawed.
It found in certifying each camera, police only photographed cars travelling through the intersection on a green light, not a red light.
“The Supreme Court judgement requires a testing process involving police vehicles activating the red light camera in controlled conditions,” police said in a statement.
“There are significant challenges in closing intersections to enable police vehicles to activate red light cameras in these circumstances.”