Illinois § 4
Full text of Illinois Illinois Compiled Statutes § 4, with citation guidance and answers to common questions.
§ 4.
Registration or license required; exceptions. (a) It is unlawful for any person to administer detection of deception examinations, or attempt to hold himself or herself out as an Examiner, unless registered or licensed by the Department. However, this shall not prohibit the use of detection of deception equipment by a person licensed to practice medicine in all its branches under the Medical Practice Act of 1987 when the results are to be used in research. (b) Nothing in this Act prohibits the use of a voice stress analyzer by any fully trained full time certified law enforcement officer of a law enforcement agency in the course of its duties as an investigative aid in a criminal investigation. Law enforcement users of a voice stress analyzer shall be trained in a manner approved by the Illinois Law Enforcement Training Standards Board. The use of a voice stress analyzer shall be conducted only with the prior written consent of the subject of such investigation. Surreptitious use of a voice stress analyzer is prohibited. Use of a voice stress analyzer is prohibited when a State or local law enforcement officer stops a motorist for an alleged violation of the Illinois Vehicle Code. A voice stress analyzer is prohibited for use in pre-employment screening and for internal investigations. For the purposes of this subsection (b), "voice stress analyzer" means an investigative tool that records voice stress factors related to frequency modulations in the human voice. (Source: P.A. 97-168, eff. 7-22-11.)
Frequently Asked Questions About Illinois § 4
What does Illinois Compiled Statutes § 4 cover?
Section 4 is part of the Illinois Compiled Statutes, the codified statutory law of Illinois. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite Illinois § 4?
A common citation format is "Illinois Compiled Statutes § 4" (Illinois). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of Illinois law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Illinois official source linked on this page or consult a licensed Illinois attorney.
How does Illinois § 4 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Illinois can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in Illinois.