That technique worked for me for many years as a traffic officer. If I had time to chase, it was instant-on. If I didn't, I used the 'grazer' method and slowed 'em down. And I have to say, I wrote an awful lot of tickets to people with either radar detectors beeping on their dash, or with "power cords to nowhere" that obviously had a radar detector connected to them until the red-and-blues came on.
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Public Safety Professional since 1985
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