Earlier this year, the United States Supreme Court issued an opinion in a case that addressed an important issue that arises in many cases that begin with an Arizona traffic stop. The case, Kansas v. Glover, presented the Court with the question of whether a law enforcement officer is able to reasonably assume that the person driving a vehicle is that vehicle’s registered owner.
The import of the Court’s decision is in how courts evaluate the legality of a traffic stop. Under longstanding Supreme Court case law, a police officer must have “a particularized and objective basis to suspect legal wrongdoing” to stop a vehicle based on a traffic violation. This has come to be known as the “reasonable suspicion” standard. Notably, reasonable suspicion requires less than a finding of probable cause. The question in this case was whether a state frooper’s assumption that the driver of a pick-up truck was the truck’s registered owner was a “reasonable” assumption.
The Facts of the Case
According to the Court’s opinion, a state trooper was on routine patrol when he ran the tags of a pick-up truck being operated by the defendant. The tags indicated that the vehicle’s owner had a revoked license. The trooper, assuming that the driver of the pick-up truck was the registered owner, pulled the truck over.