A fellow Hopmogger had to change his speedo recently, and whilst out testing the calibration by chance he came across a traffic cop with a hand held speed gun. He pulled over and the obliging copper agreed to carry out the test with his gun. He turned round then drove back past the copper at 30 MPH, and the calibration was OK. I wonder what would have happened had the calibration been off and he was actually speeding. Would the cop have booked him?