This could be caused
by a number of reasons. Most of the time the officer is
sitting in town enforcing the speed limit. If a vehicle comes
through town speeding, the officer has to take off from a stopped
position, safely enter traffic, then catch up with the vehicle that
was speeding. This can take several miles to do, because of
the traffic, and road conditions. Once the officer catches up
with the vehicle, he most likely will run the tag information before
stopping the vehicle.
