City of Atwood v. PianaltoAnnotate this Case
Defendant was convicted of driving while under the influence of alcohol and speeding. Defendant appealed both convictions and sought a trial de novo in district court, arguing that the evidence was the product of an illegal traffic stop. Specifically, Defendant argued that the officer who initiated the traffic stop did not have reasonable suspicion for the stop because the officer was mistaken about the applicable speed limit where a traffic sign normally posting the limit had been knocked to the ground. The Supreme Court affirmed, holding that the officer made a mistake of fact about the speed limit, but the mistake was objectively reasonable.