(1) Secretarial assistance to trial judges and chancellors of courts of record whose entire compensation is paid by this state shall be provided on the basis of need by the administrative director of the courts.
(2) In addition to the judges and chancellors set out in subsection (a), the administrative director of the courts shall provide a salary supplement to an existing secretary to the judge of any court created by private act that is located in a county having a metropolitan form of government and a population in excess of three hundred thousand (300,000), according to the 1980 federal census or any subsequent federal census, if the judge of the local court has concurrent criminal and civil jurisdiction with judges of courts of record. The amount of the salary supplement shall be equal to the salary supplement provided a secretary of the circuit court of the county.