(a) The criminal district attorney of Harrison County shall attend each term and session of the district courts of Harrison County and each term and session of the inferior courts of the county held for the transaction of criminal business and shall exclusively represent the state in all criminal matters before those courts. He shall represent Harrison County in any court in which the county has pending business.
(b) The criminal district attorney has all the powers, duties, and privileges in Harrison County that are conferred by law on county and district attorneys in the various counties and districts.

(c) The criminal district attorney shall collect the fees, commissions, and perquisites that are provided by law for similar services rendered by a district or county attorney.
(d) The criminal district attorney, if paid at least $16,000 a year, and the assistants to the criminal district attorney, if paid at least $10,000 a year, may not refer legal business to any person engaged in the private practice of law. This subsection does not prohibit an act required in the performance of an official duty as criminal district attorney.