(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, when such evidence is obtained by members of the Department of Public Safety, by police officers of incorporated municipalities in classes one, two and three, as defined in W.Va. Code § 8-1-3, and by the Sheriff and his or her deputies of the several counties of the state. The evidence so obtained shall be accepted as prima facie evidence of the speed of such vehicle.
(B) In order to inform and educate the public generally that speed of motor vehicles operating within the state is being tested by radar mechanisms, the State Road Commission shall locate and place suitable and informative stationary and movable signs at strategic points on and along highways in each county of the state giving notice to the public that such radar mechanisms are in use.
(1991 Code, § 19-84)