40 ILCS 5/17-147
The city treasurer, ex officio , shall be the custodian of the Fund, and shall secure and safely keep it, subject to the control and direction of the Board. The city treasurer shall keep the books and accounts concerning the Fund in the manner prescribed by the Board. The books and accounts shall always be subject to the inspection of the Board or any member thereof. The city treasurer shall be liable on the city treasurer's official bond for the proper performance of duties and the conservation of the Fund.
Payments from the Fund shall be made upon checks or through direct deposit transmittals authorized by the executive director or by such person as the Board may designate from time to time by appropriate resolution.
Neither the treasurer nor any other officer having the custody of the Fund is entitled to retain any interest accruing thereon, but such interest shall accrue and inure to the benefit of such Fund, become a part thereof, subject to the purposes of this Article.
Any legal proceedings necessary for the enforcement of the provisions of this Article shall be brought by and in the name of the Board of the Fund.
40 ILCS 5/17-147