I. The board may parole a delinquent, if: (a) The commissioner has determined that parole is in the best interest of the delinquent and the public and that further incarceration will be of no benefit; and (b) It shall appear to the board that there is a reasonable probability that the delinquent will remain at liberty without violating the law and will conduct himself as a good citizen. II. No delinquent detained at a juvenile correctional facility under RSA 169-B shall be subject to the provisions of this chapter regarding parole.