The supreme judicial court or a justice thereof may transfer for partial or final disposition in any appropriate lower court any cause or matter which might otherwise be disposed of by a single justice, and said lower court shall thereupon have jurisdiction thereof, subject to appeal, and shall have such assistance from other departments or from the use of writs and process as the law provides shall be available to it or any other court with respect to like causes or matters; provided, however, that no transfer shall be made of the following:
In any case involving public utility rates, insurance rates, or other matter clearly affecting the public interest or an entire industry, a single justice shall file with the order of transfer a statement of his reasons therefor.
The supreme judicial court may also direct any cause or matter to be transferred from a lower court to it in whole or in part for further action or directions, and in case of partial transfer may issue such orders or direction in regards to the part of such cause or matter not so transferred as justice may require.
Mass. Gen. Laws ch. 211, § 4A