US SB685

State and local law enforcement officers who comply with Department of Homeland Security immigration detainers under sections 236 or 287 of the Immigration and Nationality Act are deemed agents of DHS and receive full federal authority for those actions

States and localities complying with federal detainers receive immunity from liability in legal challenges, with officers treated as federal employees under the Federal Tort Claims Act and the United States substituted as defendant

"Sanctuary jurisdiction" defined as any state or locality that prohibits officials from sharing immigration status information with federal agencies or complying with DHS detainer requests, with an exception for policies protecting crime victims and witnesses

Sanctuary jurisdictions become ineligible for Economic Development Administration grants (public works, planning, supplementary, and technical assistance grants) and Community Development Block Grants under the Housing and Community Development Act of 1974

Effective October 1, 2025, sanctuary jurisdictions must return any federal funds received under these programs, which are then reallocated to compliant states and localities