Montana Title 26. Evidence § 26-1-1002. Permissible uses for affidavits

(1) to verify a pleading or a paper in a special proceeding;

(2) to prove the service of a summons, notice, or other paper in an action or special proceeding;

(3) to obtain a provisional remedy, the examination of a witness, or a stay of proceedings;

(4) upon a motion; and

(5) in any other case expressly permitted by some other provision of this code.