CHANDLER, AZ (3TV/CBS 5) -- If a driver exceeds the speed limit by one mile over the posted speed limit, that is considered speeding. Unless there is severe weather or the driver is in a 15-mph double-fine school zone, the chances of getting stopped slightly over the speed limit are rare.
Stanley Roberts rode with Officer Jeremy Logan of the Chandler Police Department's traffic division as he patrols for the high rollers. If you exceed the posted speed limit by more than 20 mph, that is technically criminal speeding. If you are below the 20-mph threshold, it’s considered civil speeding. The difference is that criminal speeding can land you in jail, and you are required to see a judge.