City of Ballwin v. Collins

CLEMENS, Presiding Judge.

The City of Ballwin charged defendant with speeding, driving 50 miles per hour in a 40 miles per hour zone. On defendant’s appeal to the Circuit Court, he was found guilty and fined $10 and costs. On this appeal, defendant challenges the evidence concerning a radar gun used to determine his speed, contending it was inadmissible since the radar gun’s accuracy was not shown by first establishing the accuracy of any of the devices used to test the radar gun.

Officer Townsend testified he used the radar gun after letting it warm up for three or four seconds before testing…