§ 46.2-882. Determining speed with various devices; certificate as to accuracy of device; arrest without warrant.
In any court or legal proceeding in which any question arises about the calibration or accuracy of any laser speed determination device, radar, or microcomputer device as described in this section used to determine the speed of any motor vehicle, a certificate, or a true copy thereof, showing the calibration or accuracy of (i) the speedometer of any vehicle, (ii) any tuning fork employed in calibrating or testing the radar or other speed determination device or (iii) any other method employed in calibrating or testing any laser speed determination device, and when and by whom the calibration was made, shall be admissible as evidence of the facts therein stated. No calibration or testing of such device shall be valid for longer than six months.
In this particular case, the Trooper’s “Certificate of Calibration” had expired, therefore; the judge had no choice but to dismiss the Speeding Ticket.