(a) Any person sentenced by the court of detention or labor shall be eligible for parole at such time and under such reasonable conditions as set by the Court of Indian Offenses.(b) Any person who violates the conditions of his or her parole may be required by the court to serve the whole original sentence, provided that such revocation or parole shall not be ordered without a hearing before the court at which the offender shall have the opportunity to explain his or her actions.