The superintendent of any state hospital or the director of any mental health facility of the department, who has reason to believe that a crime which is punishable by imprisonment in the state prison has been committed by or upon any person on the premises of the particular facility or by or upon any person in the care of the particular facility but not on the premises thereof, shall, no later than one week from the date of the commission of such crime, report the same to the district attorney of the district within which the crime was committed.
Mass. Gen. Laws ch. 19, § 10