Illinois Statutes Chapter 820. Employment § 57/15. Employee protections

(1) because the employee declines to attend or participate in an employer-sponsored meeting or declines to receive or listen to communications from the employer or the agent, representative, or designee of the employer if the meeting or communication is to communicate the opinion of the employer about religious matters or political matters;

(2) as a means of inducing an employee to attend or participate in meetings or receive or listen to communications described in paragraph (1); or

(3) because the employee, or a person acting on behalf of the employee, makes a good faith report, orally or in writing, of a violation or a suspected violation of this Act.