Index/Topics/Immigration law

Immigration law

Federal immigration law authorizes administrative arrest and removal warrants that ICE agents can issue internally and use to detain people

Fact-Checks

49 results
Jan 11, 2026
Most Viewed

Does ice have the authority to detain and arrest people unrelated to immigration

ICE’s statutory authority is focused on enforcing federal immigration law: the agency can question, briefly detain with reasonable suspicion, arrest noncitizens it believes are in the country unlawful...

Jan 11, 2026
Most Viewed

Can ICE detain US citizens and under what circumstances?

ICE’s official posture and federal law make a clear legal line: immigration authorities do not have the civil power to arrest and detain lawful U.S. citizens as part of removal proceedings . Neverthel...

Jan 16, 2026
Most Viewed

Can ICE demand ID from U.S. citizens or only noncitizens on public property?

Federal law does not create a general obligation for U.S. citizens to carry or show proof of citizenship in public, and ICE (a federal immigration agency) has statutory authority to question, detain o...

Jan 11, 2026

What federal statutes specifically define obstruction or assault on a federal officer that prosecutors use in ICE-interference cases?

Federal prosecutors most commonly rely on 18 U.S.C. § 111 (assaulting, resisting, or impeding certain officers) and obstruction statutes in Title 18 — frequently cited is 18 U.S.C. § 1503 (obstruction...

Jan 11, 2026

How do ICE administrative warrants differ from judicial warrants, and what court rulings have limited their use?

ICE administrative (or removal) warrants are internal agency documents signed by immigration officials rather than judges and authorize ICE to arrest a person believed removable, but they do not, by t...

Jan 14, 2026

How do administrative ICE warrants differ from judicial warrants and what do they allow agents to do?

Administrative ICE warrants are agency-issued documents—signed by DHS or ICE officials rather than judges—that authorize immigration officers to detain or remove an individual but, unlike judicial war...

Jan 17, 2026

What training do new ICE agents receive at the academy and field offices?

New ICE law‑enforcement hires receive a mix of classroom, tactical and firearms instruction at the ICE Academy operated inside the Federal Law Enforcement Training Center (FLETC) in Glynco, Georgia, s...

Jan 17, 2026

When can ICE lawfully detain someone in public and what counts as probable cause?

ICE may detain a person in public when officers have statutory authority and either a warrant or probable cause that the individual is removable or has committed a federal offense, but the agency’s po...

Jan 12, 2026

Can ICE detain American citizens

Yes — ICE agents can and have physically detained people who are U.S. citizens when agents believe those people are not citizens, and such detention can be prolonged until citizenship is proved or a c...

Jan 18, 2026

How do administrative ICE warrants differ from judicial arrest warrants and what legal force do they carry?

Administrative ICE warrants are internal immigration documents signed by ICE or DHS officials that authorize immigration officers to arrest or effect a removal order but are not reviewed or signed by ...

Jan 13, 2026

How does ICE categorize 'criminals' versus immigration violators in its public data releases?

ICE’s public data classifies people it arrests into discrete criminal-history buckets—those with U.S. criminal convictions, those with pending criminal charges, and a residual “other immigration viola...

Jan 17, 2026

When can ICE lawfully extend a traffic stop or detain passengers without a warrant?

ICE can lawfully prolong a traffic stop or detain vehicle occupants without a judicial warrant only when federal statutory authority and the Fourth Amendment’s standards are met — most critically, whe...

Jan 15, 2026

Why are most undocumented aliens in custody without criminal records

Most people in ICE custody today lack criminal convictions because immigration enforcement is a civil process that can detain people for immigration violations, recent enforcement priorities and large...

Jan 17, 2026

How did the 1996 immigration laws change expedited removal and deportation procedures?

The 1996 immigration statutes—most notably the Illegal Immigration Reform and Immigrant Responsibility Act (IIRIRA)—reconfigured U.S. deportation law by replacing the old exclusion/deportation framewo...

Jan 14, 2026

What is the most common probable cause that ICE officers use to detain someone.

The most common probable cause ICE cites to detain someone is that the person is "subject to removal"—frequently grounded in criminal convictions or immigration-related final orders—but in practice th...

Jan 14, 2026

How many lawful permanent residents were deported in FY2025 and by what grounds were they removed?

Official public reporting does not publish a single, authoritative tally of how many lawful permanent residents (LPRs, “green card” holders) were removed in FY2025, and the federal sources released fo...

Jan 9, 2026

What are the differences between green card holder and US citizen rights during ICE encounters?

Green card holders (lawful permanent residents, LPRs) and U.S. citizens both have constitutional protections during encounters with ICE, including the right to remain silent, but the practical legal o...

Jan 19, 2026

What documents would legal investigators need to prove marriage‑based immigration fraud in a congressional probe?

A congressional probe seeking to prove marriage‑based immigration fraud would assemble documentary, testimonial, and digital evidence demonstrating that the marriage was entered into primarily to circ...

Jan 19, 2026

How have courts ruled on ICE arrests on reservation land in past decade?

Federal and tribal leaders say ICE arrests on or near reservation lands have sparked legal fights and a political uproar, but reporting and legal commentary show the question remains legally unsettled...

Jan 17, 2026

How have prosecutorial discretion memoranda under different administrations affected who ICE prioritizes for arrest and removal?

Prosecutorial-discretion memoranda — internal guidance from an administration about whom to target for arrest, detention and removal — shape ICE’s day‑to‑day priorities but operate against a fixed sta...