re police radar just how does it work the father of a friend of mine is a police officer in west virginia not only is his word as a skilled observer good in court but his skill as an observer has been tested to be more accurate than the radar gun in some cases no foolin he can guess a car s speed to within mph just by watching it blow by whether he s standing still or moving too yes how was this testing done and how many times calibrated speedometer it s not the some cases that worry me it s the other cases eg suboptimal viewing conditions even the best subjective viewer can only partial compensate for certain distortions and optical illusions
