A prosecution may be commenced by: (1) a complaint; (2) an information following a preliminary examination or waiver of a preliminary examination; (3) an information after leave of court has been granted; or (4) an indictment upon a finding by a grand jury.
Methods Of Commencing Prosecution
Mont. Code Ann. § 46-11-101, under Methods of Commencing Prosecution.
Mont. Code Ann. § 46-11-101