Mass. R. Sup. Jud. Ct. 2:22
(Applicable to civil and criminal cases.)
Any petition seeking to invoke the general superintendency power of the court pursuant to G.L. c. 211, § 3, shall name as respondents and make service upon all parties to the proceeding before the lower court, including in criminal cases the Commonwealth through the District Attorney or Attorney General as appropriate. When the lower court is named as a respondent, service upon the lower court shall be made in accordance with Rule 4(d)(3) of the Rules of Civil Procedure by delivering a copy to the clerk of the lower court and to the Boston office of the Attorney General. Unless otherwise ordered by the single justice, the lower court shall thereafter be treated as a nominal party which may, but need not, appear and be heard.
Mass. R. Sup. Jud. Ct. 2:22