(a) As used in this Code section, the term "state retirement systems" means the following retirement systems: Employees' Retirement System of Georgia, Teachers Retirement System of Georgia, Public School Employees Retirement System, and Trial Judges and Solicitors Retirement Fund.

(b) When the Attorney General shall assign any assistant attorney general, deputy assistant attorney general, special deputy assistant attorney general, or attorney to perform specific legal services requested by the State Board of Workers' Compensation or by any state retirement system, the State Board of Workers' Compensation or the state retirement system requesting such services shall reimburse the Department of Law for such services, as provided in subsection (c) of this Code section.

(c) From time to time the Attorney General shall submit to the State Board of Workers' Compensation or to the state retirement systems requesting legal services a statement of the expenses of such legal services incurred by the Department of Law, such statements to include the names of the assistant attorneys general, deputy assistant attorneys general, special deputy assistant attorneys general, or attorneys performing such services; the items of legal services performed; and the costs thereof. The State Board of Workers' Compensation and the state retirement systems are authorized to reimburse the Department of Law for such services and expenses; provided, however, that the amount of such services and expenses shall have the advance approval of the director of the State Board of Workers' Compensation and the state retirement systems requesting such services.