305 ILCS 5/12-16
The Public Aid Claims Enforcement Division in the Office of the Attorney General, established pursuant to the 1949 Code, shall institute in behalf of the State all court actions referred to it by the Department of Healthcare and Family Services (formerly Illinois Department of Public Aid) or the Department of Human Services (as successor to the Illinois Department of Public Aid) under this Code and other laws for the recovery of financial aid provided under the public aid programs, the enforcement of obligations of support, and the enforcement of other claims, penalties and obligations.
The Division shall be staffed with attorneys appointed by the Attorney General as Special Assistant Attorneys' General whose special duty it shall be to execute the aforesaid duties. The Assistant Attorneys' General shall be assigned exclusively to such duties. They may engage only in such political activities as are not prohibited by the Hatch Political Activity Act, Title 5, U.S.C.A., Sections 118i et seq.
The Attorney General may request the appropriate State's Attorney of a county or staff of the Child and Spouse Support Unit established under Section 10-3.1 of this Code to institute any such action in behalf of the State or to assist the Attorney General in the prosecution of actions instituted by his Office.
305 ILCS 5/12-16