AR 27-10 governs the administration of military justice and implements the Manual for Courts-Martial and its rules for courts-martial.
View AR 27-10 on armypubs.army.mil
AR 27-10 covers concurrent criminal jurisdiction, nonjudicial punishment, courts-martial procedures, Article 69 relief, reserve-component military justice, and court reporter programs. It sets requirements for consultation with Federal civilian authorities, immunity grants, court proceedings, applications for relief, and military justice data.
Before taking any action with a view toward court-martial, courts-martial convening authorities will ensure that Federal civilian authorities are consulted in accordance with the MOU in cases likely to be prosecuted in the U.S. district courts. (paragraph 2-3)
Only the LSTC or GCM convening authorities (GCMCAs), or their designees, may issue grants of immunity pursuant to the UCMJ, RCM 704, and directives issued by the Secretary of the Army, subject to the guidance set forth in this paragraph. (paragraph 2-4)
A subpoena may be served informally by certified first-class mail, return receipt requested, or by email with a request for acknowledgment of receipt. (paragraph 5-33)
Personal delivery must be used for formal service of subpoenas (see RCM 703(g)(3)(G) and Discussion). (paragraph 5-33)
Each finding must be supported by evidence of record. (paragraph 9-9)