Title 42, Chapter 9, Section 39
(a) The provisions of this Code section shall be binding upon the
board in granting pardons and paroles, notwithstanding any other
provisions of this article or any other law relating to the powers
of the board.
(b) Except as otherwise provided in subsection (b) of Code Section 17-10-7, when a person is convicted of murder and sentenced to life imprisonment and such person has previously been incarcerated under a life sentence, such person shall serve at least 25 years in the penitentiary before being granted a pardon and before becoming eligible for parole.
(c) When a person receives consecutive life sentences as the result
of offenses occurring in the same series of acts and any one of the
life sentences is imposed for the crime of murder, such person shall
serve consecutive ten-year periods for each such sentence, up to a
maximum of 30 years, before being eligible for parole consideration.
(d) Any other provisions of this Code section to the contrary
notwithstanding, the board shall have the authority to pardon any
person convicted of a crime who is subsequently determined to be
innocent of said crime.