(a) Notwithstanding any other provisions of law to the contrary, each personnel position in the office of a district attorney, which position exists or was created or authorized on or after April 11, 1990, whether pursuant to the provisions of Code Section 15-18-14, 15-18-14.1, or 15-18-17 or pursuant to any general or local Act applicable to a judicial circuit or any county thereof, shall continue to exist or be authorized within such judicial circuit until otherwise provided by law.
(b) For purposes of this subsection, a personnel position shall be each personnel position in the office of a district attorney which is continued pursuant to subsection (a) of this Code section. Notwithstanding any other provisions of law to the contrary, if a judicial circuit, or portion thereof, is merged with, consolidated with, or otherwise becomes a part of:
(1) Only one other judicial circuit, that other judicial circuit shall have transferred to it those personnel positions for the judicial circuit, or portion thereof, which has been merged with, consolidated with, or otherwise become a part of it; or
(2) More than one other judicial circuit, those other judicial circuits shall have equitably allocated to them by the Prosecuting Attorneys' Council of the State of Georgia those personnel positions for the judicial circuit, or portion thereof, which has been merged with, consolidated with, or otherwise become a part of them.