State v. Ramsey

Defendant appeals from conviction of driving a motor vehicle when having. .15 percent or more alcohol in his blood in violation of ORS 483.999. The only assignment of error meriting discussion, or for which a sufficient record was made in the trial court, concerns the admission into evidence of the certification of an ampoule containing the chemical reagent used in the breathalyzer testing machine.

The results of the test were received in evidence, and, inter alia, the certification of the ampoule batch number of the chemical used in the machine was received as a basis for that result. ① The…