Illinois as a Sanctuary State: Overview and Key Issues

Illinois has chosen to be a sanctuary state since 2017 under the Illinois TRUST Act, which limits local law enforcement's cooperation with federal immigration authorities, such as U.S. Immigration and Customs Enforcement (ICE). This means Illinois police generally cannot detain individuals solely based on immigration status or honor ICE detainers unless accompanied by a criminal warrant. The VOICES Act further provides procedural protections for immigrants during interactions with law enforcement. The policy aims to build trust between immigrant communities and local authorities, but it has sparked significant debate over public safety, economic burdens, and federal-state tensions.

As of 2025, Illinois remains one of several states (including California and New York) facing federal scrutiny for these policies.    Learn More...

The Sanctuary policy of IL has consequences.