Section 9-107. Narcotics treatment program

a. The commissioner of correction
  shall  establish  a  program for the treatment of heroin addicts through
  the use  of  methadone  hydrochloride  therapy.  The  program  shall  be
  available on a voluntary basis only to such inmates as apply, subject to
  a  medical  evaluation,  before  acceptance,  of  their  need  for  such
  treatment.
    b. The commissioner of correction shall provide for the continuance of
  such  treatment  by  establishing  parole  procedures   and   after-care
  evaluation  and  implementation  after the incarceration has terminated,
  during the period of parole.