Oregon Revised Statutes Mental Health and Developmental Disabilities; Alcohol and Drug Treatment § 430.475

(1) The results of the evaluation of an arrested person suspected of being drug dependent shall be made available to the prosecuting and defense attorneys and the presiding judge for the judicial district, but shall not be entered into evidence in any subsequent trial of the accused except upon written consent of the accused or upon a finding by the court that the relevance of the results outweighs their prejudicial effect.

(2) Except as provided in subsection (1) of this section, results of evaluation or information voluntarily provided to evaluation or treatment personnel by a person under ORS 430.450 to 430.555 shall be confidential and shall not be admitted as evidence in criminal proceedings. Reports submitted to the court or the prosecutor by the diversion coordinator shall consist solely of matters required to be reported by the terms of the diversion plan, together with an assessment of the person's progress toward achieving the goals set forth in the plan. Communications between the person participating in the plan and the diversion coordinator shall be privileged unless they relate directly to the elements required to be reported under the diversion plan.