If at any time any question of law or any litigation arises, and the Attorney General is otherwise occupied, and cannot give the time and attention necessary to such question of law or litigation as the occasion demands, the several Assistant Attorneys General shall attend to any such question of law or litigation arising within their respective districts, and if such Assistant Attorneys General are otherwise occupied and cannot give the time and attention necessary to such question of law or litigation as the case may demand, the said Commissioner may employ additional counsel for that particular cause, with the advice and consent of the Attorney General. Such additional counsel's fees shall be paid from the moneys appropriated to the Department of Conservation and Cultural Affairs.