The annual appropriation for the Attorney General for the expenses of litigation is subject to the following conditions:
(1) the Attorney General shall conduct all litigation which may be necessary for any department of the state government or any of the boards connected therewith, and all these boards or departments are forbidden to employ any counsel for any purpose except through the Attorney General and upon his advice;
(2) out of this appropriation the Attorney General shall pay for dockets for the several circuit solicitors and those other expenses as he may deem advisable.