Mental Hygiene Law § 33.15 · Article 33. Rights of Patients
Habeas corpus
Text — Law content up to date as of June 26, 2026, as published by the New York State Senate (Open Legislation)
§ 33.15 Habeas corpus.
(a) A person retained by a facility or the department or a relative or friend on his behalf is entitled to a writ of habeas corpus to question the cause and legality of detention upon proper application.
(b) Upon the return of such a writ of habeas corpus, the court shall examine the facts concerning the person's alleged mental disability and detention. The evidence shall include the clinical record of the patient and medical or other testimony as required by the court. The court may review the admission and retention of the person pursuant to the provisions of this chapter. The court shall discharge the person so retained if it finds that he is not mentally disabled or that he is not in need of further retention for in-patient care and treatment.
(c) In a subsequent application for a writ, any party to the proceeding may introduce evidence or records from a prior hearing or trial and such records shall have the same force and effect as testimonial evidence.
(d) The application for a writ of habeas corpus and the proceedings upon it shall follow the procedure set forth in article seventy of the civil practice law and rules.
(e) The director of the facility where the person is detained shall forthwith notify the mental hygiene legal service of any such application for a writ and provide it with information as to the case.
Source of truth
- Edition
- Law content up to date as of June 26, 2026, as published by the New York State Senate (Open Legislation)
- Official file
- https://legislation.nysenate.gov/pdf/laws/MHY33.15
- Text hash
- sha256 9af345a804426505dcaf3060273244e09c19775785f17a6ba77a193242663bdf
- Composed by
- gen_ny_statutes.py 2026-11-10: the Senate's Open Legislation law tree (GET /api/3/laws/<ID>?full=true) read in document order; the Senate's PDF of the whole law (GET /pdf/laws/<ID>?full=true), read with PDFium, prints the same words in the same order
Procedural information only. Not legal advice and not a substitute for the advice of an attorney. Confirm the current text with the official publisher before relying on it.