To amend the Correctional Services Act, 1959, so as to define certain expressions and to delete a definition; to further regulate the powers of institutional committees; to provide anew for the establishment of parole boards; to further regulate placement under correctional supervision, on parole and on day parole; and to further regulate special remission of sentence; to amend the Criminal Procedure Act, 1977, so as to further regulate correctional supervision; and to make provision that a court sentencing an offender to a period of imprisonment may fix a non-parole-period; and to provide for matters in connection therewith.