Eligibility: Age 18 and older who need intensive psychiatric treatment for severe and persistent mental illness. Serves patients in the following commitment categories:

Civil: People who have been found by the courts to be an imminent danger to themselves or others, or who are unable to provide for their own basic health and safety needs due to their mental illness. Includes both involuntary commitment and voluntary commitment by guardian. Also applies to people who require hospital-level neuropsychiatric care for dementia, organic brain injury, or other mental illness, often with co-occurring significant medical issues.

Guilty Except for Insanity (GEI): People who committed a crime related to their mental illness. Depending on the nature of their crime, patients are under the jurisdiction of either the Psychiatric Security Review Board for more severe crimes or the Oregon State Hospital Review Panel for lesser crimes.

Aid and Assist: People who have been arrested but are not able to participate in their trial because of a mental illness. Courts issue an order to send defendants to the Oregon State Hospital for stabilization and mental health treatment that enables them to understand the criminal charges against them and "aid and assist" in their own defense.