(a) Any special revenue funds previously administered by the Regional Jail and Correctional Facility Authority or its executive director are continued, and shall be administered by the commissioner.
(b) Funds that have been transferred by 15A-3-16(a) of this code shall be limited in use to operations of jail functions, and for payment to the Regional Jail and Correctional Facility Authority Board, for payment of indebtedness. In no case shall a fund be utilized to offset or pay operations of nonjail parts of the facility: Provided, That funds may be utilized on a pro rata basis for shared staff and for operational expenses of facilities being used as both prisons and jails.
(c) Whenever the commissioner determines that the balance in these funds is more than the immediate requirements of this article, he or she may request that the excess be invested until needed. Any excess funds so requested shall be invested in a manner consistent with the investment of temporary state funds. Interest earned on any moneys invested pursuant to this section shall be credited to these funds.
(d) These funds consist of the following:
(1) Moneys collected and deposited in the State Treasury which are specifically designated by Acts of the Legislature for inclusion in these funds;