OR HB2471

Amends ORS 161.295 to clarify that a "guilty except for insanity" verdict requires the qualifying mental disorder to be the primary cause of the defendant's lack of substantial capacity to appreciate criminality or conform to law

Explicitly excludes cases where a mental disorder other than a qualifying mental disorder is the primary cause of the defendant's impaired capacity

Bars the insanity defense when lack of substantial capacity results from voluntary intoxication combined with any mental disorder

Continues to exclude personality disorders and abnormalities manifested only by repeated criminal or antisocial conduct from qualifying as mental disorders for this defense

Takes effect immediately upon passage as an emergency measure; applies only to conduct occurring on or after the effective date