Mass. Gen. Laws ch. 277B, § 2: Selection of county where statewide grand jury to sit; appointment of superior court justice to preside

Section 2. The chief justice of the superior court department shall, upon granting an application, receive recommendations from the attorney general as to the county in which the statewide grand jury shall sit. Upon receiving the attorney general's recommendations, the chief justice shall choose 1 of those recommended locations as the site where the grand jury shall sit. Once a county has been selected, the chief justice shall direct the regional justice from the county selected to appoint, and reappoint as necessary, a superior court justice to preside over the statewide grand jury.