Md. Code, Pub. Safety § 13A-602

(a) Proceedings may be conducted to review, or otherwise act on, the following matters before referral of charges and specifications to court–martial in accordance with regulations prescribed by § 13A–701 of this title: (1) pre–referral investigative subpoenas; (2) pre–referral warrants or orders for electronic communications; (3) pre–referral matters referred by an appellate court; (4) pre–referral matters under § 13A–603(c) or (d) of this subtitle; or (5) arrest warrants when probable cause exists to believe a military member committed a crime as described under the punitive provisions. (b) The regulations prescribed under subsection (a) of this section shall: (1) include procedures for the review of such rulings that may be ordered under this section as the adjutant general considers appropriate; and (2) provide such limitations on the relief that may be ordered under this section as the Adjutant General considers appropriate. (c) If a matter in a proceeding under this section becomes a subject at issue with respect to charges that have been referred to a general or special court–martial, the matter shall be transferred to the military judge detailed to the court–martial.