The policy objectives of the board are to "uplift and redeem valuable human material to economic usefulness and to prevent unnecessary and excessive deprivation of personal liberty." The manual presents the criteria and procedures for executive clemency, followed by the regulations for parole. An inmate will normally be eligible for parole upon a showing of confinement for an indeterminate prison sentence, the maximum period of which exceeds 1 year, providing the inmate has served the minimum period of the sentence less the good-conduct time allowances earned. An inmate may be granted a discharge on parole whenever the board finds that there is a reasonable probability that if released, the inmate will be law-abiding and that the release will not be incompatible with the interests and welfare of society. Persons who have been convicted of specified serious crimes three times or more are not eligible for parole, and neither are those convicted of treason or piracy. Those who have a pending criminal case for an offense committed while serving a sentence are not eligible for parole nor are inmates with any properly certified mental disorder. Board regulations also cover parole supervision, parole violations, the termination of parole supervision, and board proceedings.