Section 40.450 - Process or mandates, authority to issue1. Military courts may issue any process or mandate necessary to carry into effect their powers. Such a court may issue subpoenas and subpoenas duces tecum and enforce by attachment attendance of witnesses and production of books and records, when it is within the state and the witnesses, books and records sought are also so located.2. Process and mandates may be issued by summary courts-martial, provost courts, or the president or military judge of other military courts and may be directed to and may be executed by the marshals of the military court or any peace officer and shall be in such form as may be prescribed by regulations issued under sections 40.005 to 40.490.3. All officers to whom process or mandates may be so directed shall execute them and make return of their acts thereunder according to the requirements of those documents.