Mississippi Code Title 33. Military Affairs § 33-13-425

At any time within two (2) years after approval by the convening authority of a court-martial sentence, the accused may petition the state judge advocate for a new trial on ground of newly discovered evidence or fraud on the court-martial. If the accused's case is pending before the Mississippi Court of Military Appeals when this petition is filed, the appeal will not proceed until the state judge advocate has made a decision on the request. If the petition is granted, the appeal will be dismissed. If the petition is denied, the court of military appeals will continue its proceedings on the case.