Under no circumstance will DMV or OAH compel a witness to attend and testify at a hearing that determines the validity of a suspension of driving privileges unless the witness is served with a subpoena at least 72 hours prior to the time of the hearing.
Or. Admin. Code § 735-090-0051
Stat. Auth.: ORS 183.341, 184.616, 184.619, 802.010, 813.410 & 813.440
Stats. Implemented: ORS 813.410 & 813.440