Mont. Code Ann. § 16-6-310
16-6-310 Officer or agent of corporation deemed party to offense
16-6-310 . Officer or agent of corporation deemed party to offense. Where an offense against this code is committed by a corporation, the officer or agent of the corporation in charge of the premises in which the offense is committed shall prima facie be deemed to be a party to the offense so committed and shall be personally liable to the penalties prescribed for the offense as a principal offender. Nothing in this section shall relieve the corporation or the person who actually committed the offense from liability therefor.