Montana Title 17. State Finance § 17-8-409. Burden of proof--effect of criminal conviction

(1) The plaintiff in an action under 17-8-405 or 17-8-406 shall prove each essential element of the cause of action, including damages, by a preponderance of the evidence.

(2) A person convicted of or who pleaded guilty or nolo contendere to a criminal offense may not deny the essential elements of the offense in an action under 17-8-405 or 17-8-406 that involves the same event or events as the criminal proceeding.