(a) A full-time magistrate is entitled to the salary determined by the commissioners court of Tom Green County. The salary may not be less than an amount equal to the salary, supplements, and allowances paid to a justice of the peace of Tom Green County as set by the annual budget of Tom Green County.
(b) A magistrate’s salary is paid from the county fund available for payment of officers’ salaries.

(c) The salary of a part-time magistrate is equal to the per-hour salary of a full-time magistrate. The per-hour salary is determined by dividing the annual salary by a 2,080 work-hour year. The judges of the courts trying criminal cases in Tom Green County shall approve the number of hours for which a part-time magistrate is to be paid.