This paragraph (7) shall not apply with respect to any cause of action arising under the Illinois Human Rights Act as in effect prior to the effective date of this amendatory Act of 1997.
As used in paragraph (7) or (8):
"Firefighter/paramedic" means an employee, the duties of whose position are primarily to perform work directly connected with the control and extinguishment of fires or the maintenance and use of firefighting apparatus and equipment, or to provide emergency medical services, including an employee engaged in this activity who is transferred to a supervisory or administrative position.
"Law enforcement officer" means an employee, the duties of whose position are primarily the investigation, apprehension, or detention of individuals suspected or convicted of criminal offenses, including an employee engaged in this activity who is transferred to a supervisory or administrative position.
It shall not be a violation of this Act for an employer to adopt or administer reasonable policies or procedures, including but not limited to drug testing, designed to ensure that an individual described in subparagraph (a) or (b) is no longer engaging in the illegal use of drugs.
775 ILCS 5/2-104