Miss. Code Ann. § 25-32-5

Compensation for the public defender shall be fixed by the board of supervisors or boards of supervisors, if two (2) or more counties are acting jointly; provided, however, the compensation for a public defender, who shall be full-time, representing an entire circuit court district shall not be less than the compensation of the district attorney, the compensation for a public defender representing one (1) county shall not be less than the compensation of the county prosecuting attorney and the compensation for a public defender representing two (2) or more counties, but less than the entire circuit court district, shall not be less than the aggregate of the compensation for county prosecuting attorneys of the counties served, but in no event to exceed the compensation of the district attorney. No full-time public defender or full-time assistant public defenders shall engage nor be associated with any person in the private practice of law. Part-time public defenders or part-time assistant public defenders may engage in the private practice of the law as long as such practice does not relate to the prosecution of criminal matters.