City of Barberton v. Jenney

{¶ 1} In this appeal, we determine whether a police officer’s unaided visual estimation of a vehicle’s speed, by itself, is sufficient evidence of the vehicle’s speed to support a conviction for speeding in violation of R.C. 4511.21(D). Appellant, Mark Jenney, argues that it is impossible for a police officer to visually estimate the exact speed of a moving object. He asks the court to establish a bright-line rule that an officer’s visual estimation of speed, without other evidence to support it, is insufficient to sustain a conviction for speeding.

{¶ 2} A rational trier of fact could find…