(2)When there is no grave reason for immediate action and reference can without detriment to discipline be made to the officer empowered to convene a district court-martial or on active service a summary general court-martial for the trial of the alleged offender, an officer holding a summary court-martial shall not try without such reference any offence punishable under any of the sections 34, 37 and 69, or any offence against the officer holding the court.
