Oregon uses the term “driving under the influence of intoxicants” (DUII) instead of DUI (driving under the influence). Read about how Oregon defines the offense and the penalties you'll face if convicted of a first DUII.
Sobriety checkpoints are not authorized in Oregon (see State v. Boyanovsky, 743 P.2d 711 (Or. 1987)). Sobriety checkpoints are random traffic stops, not tied to any specific suspicions. At one of these checkpoints, drivers are briefly questioned after which suspicious drivers are subject to field sobriety tests.
Under Oregon’s implied consent law, any person who operates a motor vehicle on a highway or premises open to the public is deemed to have given consent to a chemical test of the person’s breath, blood, and/or urine. Read about the law's specifics and the penalties for refusing DUII testing.