Illinois Sen. Halpin’s substance use disorder case management bill passes House and Senate

Passed bill authored by State Sen. Michael W. Halpin aims to update substance use disorder services for criminal justice clients by allowing eligible defendants to elect case management instead of traditional treatment, according to the Illinois General Assembly.

In the House, 77 Democrats and 39 Republicans voted in favor of the bill.

Meanwhile, in the Senate, 37 Democrats and 18 Republicans voted in favor of the bill.

Halpin introduced the bill in the Illinois Senate on Feb. 6, 2026 during the 104th session.

The legislation, known as SB3880, was passed on May 30, 2026 during the general assembly session 104.

According to the Illinois General Assembly site, the legislature summarized the bill’s official text as follows: “Amends the Substance Use Disorder Treatment for Criminal Justice Clients Article of the Substance Use Disorder Act. Changes references from “treatment” to “case management” and changes the name of the Article. Provides that nothing in provisions concerning case management shall preclude any individual with a substance use disorder who is charged with or convicted of a crime from receiving case management services with a designated program if such services are ordered by the court. Provides that the court, with the consent of the defendant and the State’s Attorney, may, without entering a judgment, sentence the defendant to probation under a provision concerning case management as a condition of probation. Provides that the sentence to probation under the provisions shall not be considered a conviction under Illinois law unless and until judgment is entered upon violation of a term or condition of probation. Provides that, upon fulfillment of the terms and conditions of probation, the court shall discharge the person and dismiss the proceedings against the person. Provides that case management services by a designated program may be made a condition of pretrial release, and failure to comply with such services may be treated as a violation of a condition of pretrial release. Requires the designated program to make periodic progress reports regarding each such defendant to the appropriate pretrial services agency or Office of Statewide Pretrial Services and to report failures to comply with the requirements of the designated program. Makes conforming and other changes.”

The following is our breakdown, based on the actual bill text, and may include interpretation to clarify its provisions.

In essence, this bill renames an article of the Substance Use Disorder Act to focus on “substance use disorder services for criminal justice clients” and replaces references to “treatment” with “case management.” It allows eligible defendants whose offenses are tied to drug or alcohol use to elect case management with a licensed designated program, subject to detailed exclusions for violent and other serious crimes. The bill lets courts order case management as a condition of probation, parole, release or pretrial release and, with consent of the defendant and state’s attorney, place a person on probation without entering judgment. Successful completion leads to discharge and dismissal, while violations can trigger judgment or sanctions, and designated programs must report progress and noncompliance.

The bill was sponsored by Sen. Adriane Johnson (Democrat-30th District), Rep. Carol Ammons (Democrat-103rd District), and Sen. Graciela Guzmán (Democrat-20th District), along with 10 other sponsors.

Bills in Illinois follow a multi-step legislative process, beginning with introduction in either the House or Senate, followed by committee review, floor debates, and votes in both chambers before reaching the governor for approval or veto. The General Assembly operates on a biennial schedule, and while typically thousands of bills are introduced each session, only a fraction successfully pass through the process to become law.

You can read more about bills and other measures here.

Halpin graduated from Roger Williams University in 2001 with a BA and again in 2008 from University of Illinois with a JD.

Halpin, a Democrat, was elected to the Illinois State Senate in 2023 to represent the state’s 36th Senate District, replacing previous state senator Neil Anderson.

Lawmakers listed as “Not Voting” were present for the vote but did not cast a vote. Those marked as having an “Excused Absence” were not present and formally provided a reason for their absence, which was accepted.