740 ILCS 10/11
Current through Public Act 103-585
When the wording of this Act is identical or similar to that of a federal antitrust law, the courts of this State shall use the construction of the federal law by the federal courts as a guide in construing this Act. However, this Act shall not be construed to restrict the exercise by units of local government or school districts of powers granted, either expressly or by necessary implication, by Illinois statute or the Illinois Constitution.
740 ILCS 10/11