To appoint such actuarial, legal, medical, clerical and other employees as may be necessary in the administration of the fund and fix their compensation.
One or more actuaries shall be employed with duty to determine the amount of money necessary to be provided under this Article, and to assist the board in preparing the annual statement as of the last day of each fiscal year, and to certify to the correctness thereof.
40 ILCS 5/12-169