State v. Keller

Defendant appeals a judgment of conviction for driving under the influence of intoxicants (DUII), ORS 813.010. He assigns error to the trial court’s denial of his motion to suppress evidence obtained after a Washington State Trooper stopped him in Oregon for traffic violations committed in Washington. We conclude that the trooper’s stop of defendant was without lawful authority and thus violated Article I, section 9, of the Oregon Constitution. Accordingly, we reverse and remand.

The relevant facts are undisputed. Thompson, a Washington State Trooper, was driving an unmarked patrol car…