Every such person empowered to make an arrest shall have the same authority, in arresting the accused, to command assistance therein, as officers have by law in the execution of any criminal process directed to them, with like penalties against those who refuse their assistance.
Mass. Gen. Laws ch. 276, § 18
Authority to command assistance; penalties for refusal
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.