Federal Subpoenas in Immigration Enforcement Clash with Sanctuary Policies
Federal authorities recently issued subpoenas to Cook County Sheriff Tom Dart for inmates needed for civil immigration enforcement. These subpoenas were accompanied by letters threatening criminal charges if the individuals were not surrendered, as stated by the sheriff’s office. This action, reported by The New York Times, seems to be part of the Trump administration’s strategy to access jails in sanctuary jurisdictions.
The New York Times also noted that Hennepin County Sheriff Dawanna Witt received similar letters, describing them as a “scare tactic.” Federal immigration enforcement in Minneapolis increased following “Operation Midway Blitz.” According to Dart’s office, the letters warned him of potential charges for witness tampering. The U.S. Department of Homeland Security did not immediately comment on this issue.
The chances of actual criminal charges being upheld by a judge appear slim. However, this incident highlights ongoing tensions over federal immigration enforcement in Illinois. President Donald Trump’s administration has criticized Illinois for its policies that limit local law enforcement’s involvement in civil immigration enforcement.
A statement from Dart’s office clarified that two letters were received with subpoenas for inmates. One inmate had been released before the letter’s arrival. The second inmate was notified via a subpoena requesting their attendance at an interview with a federal agency. The sheriff’s office was asked to facilitate this interview.
State law prohibits the sheriff’s personnel from releasing individuals in custody to any federal law enforcement agency for interviews. The Sheriff’s Office stated, “The Sheriff’s Office is also not allowed to turn individuals over upon release for an interview with federal agents or any other law enforcement agency.”
President Trump has been vocal against Governor JB Pritzker and other state officials regarding sanctuary laws. These laws prevent Dart’s office from handing over inmates to federal immigration agencies without a federal criminal warrant or court order. The Trump administration condemned the lack of cooperation with Immigration and Customs Enforcement’s detainer requests. However, the Cook County sheriff’s office and Illinois Department of Corrections stated they are bound by state law.
In 2025, the administration filed a lawsuit against Illinois, Cook County, and Chicago over sanctuary policies. They argued these laws hinder federal immigration officers’ duties. A federal judge later dismissed the complaint that year.
Legal experts and advocates state that sanctuary policies have been part of U.S. history to maintain community trust. These policies aim to help local police collaborate with community members on public safety matters. The Illinois TRUST Act, passed in 2017, is designed to strengthen this trust and cooperation. Chicago’s sanctuary city status dates back to March 1985 when Mayor Harold Washington signed an executive order reinforcing these principles.