It shall be the duty of all correctional institution officials to grant to the members of the prisoner review board, or its properly accredited representatives, access at all reasonable times to any inmate, to provide for the board or such representative facilities for communicating with and observing such inmate, and to furnish to the board such reports as the board shall require concerning the conduct and character of any inmate in their custody and any other facts deemed by the board to be pertinent in determining any issue before the board.