Mont. Code Ann. § 46-23-203

It shall be the duty of all prison officials to grant to the members of the board or its properly accredited representatives access at all reasonable times to any prisoner over whom the board has jurisdiction under parts 1, 2, 3, and 10 of this chapter, to provide for the board or such representatives facilities for communicating with and observing such prisoner, and to furnish to the board such reports as the board shall require concerning the conduct and character of any prisoner in their custody and any other facts deemed by the board pertinent in determining whether such prisoner shall be paroled.