(1) Each clerk of the circuit court, on behalf of the state attorney, private court-appointed counsel, the public defender, and the criminal conflict and civil regional counsel, shall forward to the Justice Administrative Commission, by county, a quarterly estimate of funds necessary to pay for ordinary witnesses, including, but not limited to, witnesses in civil traffic cases and witnesses of the state attorney, the public defender, criminal conflict and civil regional counsel, private court-appointed counsel, and persons determined to be indigent for costs. Each quarter of the state fiscal year, the commission, based upon the estimates, shall advance funds to each clerk to pay for these ordinary witnesses from state funds specifically appropriated for the payment of ordinary witnesses.
(2) Upon receipt of an estimate pursuant to subsection (1), the Justice Administrative Commission shall endorse the amount deemed necessary for payment by the clerk of the court during the quarterly fiscal period and shall submit a request for payment to the Chief Financial Officer.
(3) Upon receipt of the funds from the Chief Financial Officer, the clerk of the court shall pay all invoices approved and submitted by the state attorney, the public defender, criminal conflict and civil regional counsel, and private court-appointed counsel for the items enumerated in subsection (1).
(4) After review for compliance with applicable rates and requirements, the Justice Administrative Commission shall pay all due process service related invoices, except those enumerated in subsection (1), approved and submitted by the state attorney, the public defender, criminal conflict and civil regional counsel, or private court-appointed counsel in accordance with the applicable requirements of ss. 29.005, 29.006, and 29.007. 
