Tex. Government Code § 432.061: PROCEDURE.

The procedure, including modes of proof, in cases before military courts and other military tribunals may by regulations be prescribed by the governor. The regulations, so far as the governor considers practicable, must conform to the principles of law and the rules of evidence generally recognized in the trial of criminal cases in the courts of the state but may not be contrary to or inconsistent with this chapter.

Acts 1987, 70th Leg., ch. 147, Sec. 1, eff. Sept. 1, 1987.