Who may initiate an 5150 hold?

• A. Only a peace officer.
• B. A peace officer, or a licensed clinician, or other designated mental health professional who has reason to believe criteria are met.
• C. A family member.
• D. A judge.

Answer: (B)

In California, an emergency 5150 hold can be started by someone in a position to assess risk in the moment: a peace officer, or a licensed clinician, or another designated mental health professional who has reasonable belief that the person meets the criteria. This authority exists precisely so crisis situations can be handled quickly to keep people safe. The hold allows up to 72 hours of psychiatric evaluation and treatment while the person is temporarily removed from voluntary control.

Family members don’t have the authority to initiate a 5150 on their own; they can call for help, but the formal hold must be started by law enforcement or a qualified mental health professional. A judge isn’t the initiator either—the judge’s role comes later, such as in court proceedings or orders for continued detention after evaluation.