(a) The board shall adopt, implement, and maintain a parole guide-
lines system for determining parole action. The guidelines system shall be used in determining parole actions on all inmates, except those serving life sentences, who will become statutorily eligible for parole consideration. The system shall be consistent with the board’s primary goal of protecting society and shall take into consideration the severity of the current offense, the inmate’s prior criminal history, the inmate’s conduct, and the social factors which the board has found to have value in predicting the probability of further criminal behavior and successful adjustment under parole supervision.
(b) The guidelines system required by subsection (a) of this Code section shall be adopted by rules or regulations of the board. The rules or regulations shall be adopted in conformity with Chapter 13 of Title
50, the “Georgia Administrative Procedure Act.”