745 ILCS 10/2-213

Notwithstanding any other provision of law, a public employee is not liable to pay punitive or exemplary damages in actions brought against the employee based on an injury allegedly arising out of an act or omission occurring within the scope of employment of such an employee serving in a position involving the determination of policy or the exercise of discretion when the injury is the result of an act or omission occurring in the performance of any legislative, quasi-legislative or quasi-judicial function, even though abused.