Ask a Lawyer and Get Answers to Your Legal Questions
The easiest way to get someone committed for psychiatric evaluation would be to report him to the police as someone with a "mental illness or serious emotional disturbance,."
Below is the statute that indicates who can commit someone under Tennessee law.
33-6-402. Detention without warrant authorized. If an officer authorized to make arrests in the state, a licensed physician, a psychologist authorized under § 33-6-427(a), or a professional designated by the commissioner under § 33-6-427(b) has reason to believe that a person is subject to detention under § 33-6-401, then the officer, physician, psychologist, or designated professional may take the person into custody without a civil order or warrant for immediate examination under § 33-6-404 for certification of need for care and treatment.