Another persistent misconception is that ICE must have a judge-signed warrant to arrest someone. That is false. Immigration officers are authorized by statute to make warrantless arrests for immigration violations under 8 U.S.C. § 1357. ICE also executes administrative warrants, which are issued internally by the agency rather than by a judge.
Administrative warrants, authorized under the immigration detention framework in
8 U.S.C. § 1226, are lawful instruments allowing ICE to take individuals into custody for civil immigration proceedings even though they are issued by the agency rather than a court. These warrants are commonly used to formalize civil immigration custody, such as when ICE decides to detain someone for removal proceedings after an arrest or while the person is already in government custody.
ICE’s authority to arrest someone in public does not come from an administrative warrant; it comes directly from 8 U.S.C. § 1357 when the statutory conditions are met. Administrative warrants instead provide the legal basis for continuing to hold the person in civil immigration detention while removal proceedings move forward.
Judicial warrants are required only in specific circumstances, most notably when ICE seeks to forcibly enter a private residence without consent. Outside the home, including during public arrests, vehicle stops, and consensual encounters, ICE officers may act under their statutory authority without a warrant.