[SPF2245]

Just for the non-cops, most radar schools are ~40 hours of math and in my class the final certification was 20 controlled speed verifications with a +/- 5mph (ie the suspect vehicle was moving at 50mph and you had to be within 45-55. Then you had to also have a distance you make the estimate. We had to get 18 out of 20 correct to pass the class. Along with that, we had 100 practice runs during the week...by the end we'd be making estimates +/- 2mph with near 100% accuracy.

The reason this exsists is due to the radar can not tell you which car is traveling at the speed indicated so you use the radar to verify your visual estimate. It's really not hard to do this accurately.