Mass. Gen. Laws ch. 149, § 84: Service of summons or warrants

Section 84. A summons or warrant issued by any court or trial justice having jurisdiction of the violation of any provision of sections sixty to eighty-three, inclusive, or sections ninety to ninety-seven, inclusive, may be served at the direction of the court or justice by an inspector or by a supervisor of attendance or by any officer qualified to serve criminal process.