Illinois Statutes Chapter 5. General Provisions § 430/5-65. Prohibition on sexual harassment

(a) All persons have a right to work in an environment free from sexual harassment. All persons subject to this Act are prohibited from sexually harassing any person, regardless of any employment relationship or lack thereof.

(b) For purposes of this Act, “sexual harassment” means any unwelcome sexual advances or requests for sexual favors or any conduct of a sexual nature when: (i) submission to such conduct is made either explicitly or implicitly a term or condition of an individual's employment; (ii) submission to or rejection of such conduct by an individual is used as the basis for employment decisions affecting such individual; or (iii) such conduct has the purpose or effect of substantially interfering with an individual's work performance or creating an intimidating, hostile, or offensive working environment. For purposes of this definition, the phrase “working environment” is not limited to a physical location an employee is assigned to perform his or her duties and does not require an employment relationship.