745 ILCS 10/2-102

Notwithstanding any other provision of law, a local public entity is not liable to pay punitive or exemplary damages in any action brought directly or indirectly against it by the injured party or a third party. In addition, no public official is liable to pay punitive or exemplary damages in any action arising out of an act or omission made by the public official while serving in an official executive, legislative, quasi-legislative or quasi-judicial capacity, brought directly or indirectly against him by the injured party or a third party.