Police detected a radar detector. As a South Simcoe Police officer was on general patrol along Bradford’s Professor Day drive on Wednesday, his radar detector detector went off. It was alerting the officer to a passing vehicle, which was then pulled over. a 29-year-old Springwater man has since been charged with Possession of a Radar Warning Device. Drivers are reminded radar detectors are illegal in Ontario. It doesn’t even need to be turned on to get you in trouble.