Mass. Gen. Laws ch. 123, § 23
This section sets forth the statutory rights of all persons regardless of age receiving services from any program or facility, or part thereof, operated by, licensed by or contracting with the department of mental health, including persons who are in state hospitals or community mental health centers or who are in residential programs or inpatient facilities operated by, licensed by or contracting with said department. Such persons may exercise the rights described in this section without harassment or reprisal, including reprisal in the form of denial of appropriate, available treatment. The rights contained herein shall be in addition to and not in derogation of any other statutory or constitutional rights accorded such persons.
(f) reasonable daily access to the outdoors, as weather conditions reasonably permit, at inpatient facilities in a manner consistent with the person's clinical condition and safety as determined by the treating clinician and with the ability of the facility to safely provide access. The department shall promulgate regulations defining what shall constitute reasonable access and regulations implementing sufficient precautions to ensure the safety of staff members charged with accompanying patients outdoors.
Any dispute or disagreement concerning the exercise of the aforementioned rights in clauses (a) to (f), inclusive, and the reasons therefor shall be documented with specific facts in the client's record and subject to timely appeal.
Any right set forth in clauses (a), (c) or (f) may be temporarily suspended, but only for a person in an inpatient facility and only by the superintendent, director, acting superintendent or acting director of such facility upon such person; concluding, pursuant to standards and procedures set forth in department regulations that, based on experience of such person's exercise of such right, further such exercise of it in the immediate future would present a substantial risk of serious harm to such person or others and that less restrictive alternatives have either been tried and failed or would be futile to attempt. The suspension shall last no longer than the time necessary to prevent the harm and its imposition shall be documented with specific facts in such person's record.
A notice of the rights provided in this section shall be posted in appropriate and conspicuous places in the program or facility and shall be available to any such person upon request. The notice shall be in language understandable by such persons and translated for any such person who cannot read or understand English.
The department, after notice and public hearing pursuant to section 2 of chapter 30A, shall promulgate regulations to implement the provisions of this section.
In addition to the rights specified above and any other rights guaranteed by law, a mentally ill person in the care of the department shall have the following legal and civil rights: to wear his own clothes, to keep and use his own personal possessions including toilet articles, to keep and be allowed to spend a reasonable sum of his own money for canteen expenses and small purchases, to have access to individual storage space for his private use, to refuse shock treatment, to refuse lobotomy, and any other rights specified in the regulations of the department; provided, however, that any of these rights may be denied for good cause by the superintendent or his designee and a statement of the reasons for any such denial entered in the treatment record of such person.
Any such person shall have the following rights: