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How do troopers measure speed?

The Highway Patrol measures speed in one of four ways:

  1. Radar - Doppler radar's with moving and stationary capabilities mounted inside the patrol vehicle.
  2. LIDAR - Hand-held laser speed measuring devices that are used in a stationary position.
  3. Aircraft - Speed is calculated using a time and distance formula.
  4. Pacing - Certified, calibrated speedometers in patrol vehicles are used to match the speed of the violator's vehicle.