Mass. R. Sup. Jud. Ct. 2:14
(Applicable to all cases.)
A writ of protection shall issue only upon the application of the person for whom the writ of protection is to be issued, or some person in his behalf, and upon order of the court, and then only in case it is made to appear to the court, by affidavit and any other evidence that the court may require, (1) that the application is made in good faith and for the purpose of enabling such person to attend this court as a party or witness in some specified case pending, (2) if such person is a party, that such case has not been brought collusively to enable him to obtain a writ of protection, and (3) if such person is a witness, that he has not been required to attend as a witness by his own request or procurement to enable him to obtain a writ of protection.
Mass. R. Sup. Jud. Ct. 2:14