The presidents of courts-martial and summary court officers may request the aid of the solicitor of the judicial circuit in which the court is sitting for assistance in the issuance of any writ, warrant, subpoena, or other process that is necessary. It is the duty of each solicitor, when called upon, to assist in the issuance of process, and the form must be that which is considered by the solicitor to be most appropriate to the situation and in keeping with the form of the process of the courts of general sessions.