(a) The Prosecuting Attorney of the Twelfth Judicial District shall receive a contingent expense allowance to provide for office expenses, including telephone, telegraph, postage, printing, office supplies and equipment, office rent, stationery, traveling expenses, special services, operation of automobiles, and such other expenses which, within the discretion of the prosecuting attorney, may be a proper expense of the office, and also including necessary expense in connection with any proper investigation incidental to any criminal law violation or trials before any grand jury or any court within the Twelfth Judicial District, coming within the duties of his office.
(b)
(1) The contingent expense allowance is to be borne by the respective counties of the Twelfth Judicial District as follows:
(A) Crawford County $10,995.00; and
(B) Sebastian County $99,375.34.
(2) Provided, the counties in the Twelfth Judicial District shall pay the above-prescribed annual amounts upon vouchers signed by the prosecuting attorney and allowed as claims against the county general revenue funds of the respective counties.
(c) The quorum courts may increase these amounts in their discretion, if necessary.