(1) The department is charged with the duty of supervising all prisoners released on parole from the prisons of the state, workhouses, jails or those accepted through the interstate compact, and of making investigation as may be necessary in connection therewith.
(2) A probation and parole officer may, with the consent of the director, suspend direct supervision of a parolee after a successful two-year period of supervision. The parolee shall continue on parole and be subject to all rules and conditions of parole. A parolee who violates the rules and conditions may be subject to reinstatement of direct supervision or revocation of parole.