Illinois Code § 509

Illinois Code § 509. Reproduced from the official Illinois Compiled Statutes, with a citation summary, verification link, and related provisions.

§ 509.

Whenever any court in this State grants probation to any person that the court has reason to believe is or has a substance use disorder or unlawful possessor of controlled substances, the court shall require, as a condition of probation, that the probationer submit to periodic tests by the Department of Corrections to determine by means of appropriate chemical detection tests whether the probationer is using controlled substances. The court may require as a condition of probation that the probationer enter an approved treatment program, if the court determines that the probationer has a substance use disorder of a controlled substance. Whenever the Prisoner Review Board grants parole or the Department of Juvenile Justice grants aftercare release to a person believed to have been an unlawful possessor or person with a substance use disorder, the Board or Department shall require as a condition of parole or aftercare release that the parolee or aftercare releasee submit to appropriate periodic chemical tests by the Department of Corrections or the Department of Juvenile Justice to determine whether the parolee or aftercare releasee is using controlled substances. (Source: P.A. 103-881, eff. 1-1-25.)

Source: official Illinois text · Last verified 2026-08-27

At a glance

  • Citation: Illinois Compiled Statutes § 509
  • Jurisdiction: Illinois
  • Code: Illinois Compiled Statutes
  • Text: transcribed from the official source (verify below)

Verify the text

Statute text is transcribed from the official Illinois Compiled Statutes. Confirm it against the primary source before relying on it:

Not legal advice. Verify against the official source and consult a licensed Illinois attorney.

Common questions

What is the source of Illinois Compiled Statutes § 509?

The text above is transcribed from the Illinois Compiled Statutes, the codified statutes of Illinois. The official publisher link appears under "Verify the text" on this page.

What subject does Illinois Compiled Statutes § 509 address?

It addresses the rule set out in the section text. Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.

Is Illinois Compiled Statutes § 509 still in force?

Statutes are amended, repealed, and renumbered every session. Confirm the current version at the official Illinois source before relying on this text.

Can this page be used as legal advice?

No. This is a reference transcription for research. Applying Illinois law to your facts requires a licensed Illinois attorney who can review the specifics.