Montana Title 45. Crimes § 45-7-302. Obstructing peace officer or other public servant

(1) A person commits the offense of obstructing a peace officer or public servant if the person knowingly obstructs, impairs, or hinders the enforcement of the criminal law, the preservation of the peace, or the performance of a governmental function, including service of process.

(2) It is no defense to a prosecution under this section that the peace officer was acting in an illegal manner, provided that the peace officer was acting under the peace officer's official authority.

(3) A person convicted of the offense of obstructing a peace officer or other public servant, including a person serving process, shall be fined not to exceed $500 or be imprisoned in the county jail for a term not to exceed 6 months, or both.