(a) The speed of a motor vehicle may be proved by evidence obtained by use of any device designed to measure and indicate or record the speed of a moving object by means of microwaves or reflected light, when such evidence is obtained by members of the Police Department. The evidence so obtained shall be accepted as prima facie evidence of the speed of such vehicle.
(WVaC 17C-6-7)
(b) In order to inform and educate the public generally that speed of motor vehicles operating within the City is being tested by radar mechanisms, the City Police Force shall locate and place suitable and informative, stationary and movable signs at strategic points on and along the streets of the City. (1976 Code Sec. 18-49)