(1) This title governs the practice and procedure in all criminal proceedings in the courts of Montana except where provision for a different procedure is specifically provided by law.
(2) This title is intended to provide for the just determination of every criminal proceeding. The purposes of this title are to secure simplicity in procedure, fairness in administration, and elimination of unjustifiable expense and delay.
(3) Any irregularity in a proceeding specified by this title that does not affect the substantial rights of the accused must be disregarded.