Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 127, § 33

The superintendents of all institutions under the jurisdiction of the department of correction and the superintendents and keepers of jails and houses of correction shall cause all necessary means to be used to maintain order in the institutions under their supervision, enforce obedience, suppress insurrection and prevent escapes, and for that purpose they may at all times require the aid and utmost exertions of all the officers of the institution except the chaplain and the physician.