Mont. Code Ann. § 44-4-115

There is a fish, wildlife, and parks enforcement program in the department of justice, which must be administered by the entity in the department that assists county attorneys with prosecutions. The program staff may investigate and may prosecute criminal cases concerning the violation of the laws administered by the department of fish, wildlife, and parks. The program is under the supervision and control of the attorney general and consists of a half-time attorney licensed to practice law in Montana who may prosecute, or assist county attorneys and the department in the prosecution of, criminal violations of Title 87.