(a) A supernumerary circuit district attorney of the Tenth Judicial Circuit of Alabama shall be entitled to receive as additional compensation payable from the treasury of the county within the circuit, a sum equal to 40 percent of the compensation paid the supernumerary district attorney by the State of Alabama. The salary or compensation provided for herein is supplemental to the salary or compensation paid such supernumerary district attorney by the state and shall be paid out of the general funds of the county in 12 equal monthly installments on warrants properly drawn against such funds.
(b) This section shall apply only to persons who become a supernumerary district attorney after April 26, 1982.