Montana Title 46. Criminal Procedure § 46-20-703. Action reviewing court may take

(1) reverse, affirm, or modify the judgment or order from which the appeal is taken;

(2) set aside, affirm, or modify any or all of the proceedings subsequent to or dependent upon the judgment or order from which the appeal is taken;

(3) reduce the offense of which the appellant was convicted to a lesser included offense;

(4) reduce the punishment imposed by the trial court; or

(5) order a new trial if justice so requires.