And the Herald Sun has been told Victoria Police is now rewriting those rules so they can officially continue to conceal some cameras.
Police recently told speed camera commissioner Gordon Lewis the use of concealed or partly hidden mobile speed cameras is necessary to protect camera operators from injury.
Changes being planned to the force's speed camera guidelines will also make it clear to mobile speed camera operators they can put cameras at the bottom of hills and on downhill slopes if they believe doing so will achieve the desires "road safety objective".
Mr Lewis yesterday endorsed the planned rule changes relating to hidden cameras and cameras on hills. He said both were justified to protect mobile camera operators and road users.
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