What are the grounds for ICE to arrest a legal permanent resident?

Checked on February 6, 2026
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Executive summary

Ice can lawfully arrest a lawful permanent resident (LPR) when federal immigration statutes identify the person as removable—for example after certain criminal convictions, when an officer has probable cause or reasonable suspicion of unlawful presence or other immigration violations, or when admissibility issues arise at a port of entry—and those statutory powers are broad but constrained by constitutional and regulatory limits [1] [2] [3]. Practical triggers include criminal arrests and detainers, questioning at borders or airports about abandonment of LPR status, workplace or community enforcement, and errors or database mismatches that can lead to mistaken detention [4] [5] [6] [7].

1. Statutory removal grounds and mandatory detention: when a green card holder’s past conduct triggers ICE

Federal law identifies specific grounds that make an LPR removable—most prominently certain criminal convictions and terrorism- or security-related findings—and for many of those categories detention is mandatory while removal proceedings proceed, meaning ICE need not offer bond in some cases [1] [8]. Congressional legal summaries explain that while enforcement priorities may shift with administrations, the statutory authorities allowing arrest and mandatory detention for specified removable categories have remained in place and are the principal legal basis for ICE to take custody of some LPRs [1] [8].

2. Border and port-of-entry encounters: admissibility and “abandonment” of status

Customs and Border Protection (CBP) questioning at borders, airports, or upon international return is a routine point where LPRs can be questioned and flagged for ICE action; prolonged absences or questions about whether the LPR has “abandoned” residency can prompt admissibility challenges that lead to detention and removal proceedings [5] [6]. ICE and CBP authority to question and refer individuals to ICE at ports of entry is a frequent operational route to arresting green card holders who raise admissibility or continuous-residence concerns [5] [6].

3. Interior arrests, reasonable suspicion and warrant rules

ICE has statutory authority to arrest in the interior under 8 U.S.C. §1357 when statutory conditions—such as reasonable grounds to believe someone is removable—are met, and administrative warrants and detainers play a role in continuing detention or coordinating custody with local jails [2] [4]. Constitutional limits remain relevant: ICE generally cannot force entry into a private home without a judicial warrant, and officers sometimes present agency “warrants” that do not by themselves authorize home entry; courts have also required at least reasonable suspicion (not race or ethnicity alone) for certain stops [9] [10] [2].

4. Workplace inspections, community operations, and targeted arrests

Statutes and regulations authorize ICE to conduct workplace inspections and community arrests where there is reasonable suspicion of unauthorized employment or presence, and the agency uses detainers to take custody of potentially removable persons held by local law enforcement; these operational tools can result in LPR arrests when documentation or criminal history raises removal questions [1] [4] [8]. Policy changes—such as rescinding “sensitive locations” protections—have expanded locations where enforcement can occur and produced litigation over constitutional and statutory limits, affecting where and how LPRs may be arrested [8].

5. Mistaken identity, database errors, and practical risks

Mistaken detentions of LPRs are documented realities: database errors, misidentification, or stale records can cause ICE to detain lawful permanent residents temporarily, and advocates caution that safeguards do not eliminate those risks—prompt legal intervention and documentation are often necessary to resolve wrongful detentions [7] [9]. Journalistic and legal analyses note high-profile cases where LPRs were detained far from their homes and emphasize that while legal frameworks grant ICE broad authority, constitutional protections and avenues for review exist and are being litigated [3] [2].

Want to dive deeper?
Which criminal convictions make a lawful permanent resident subject to mandatory detention and deportation under U.S. immigration law?
How do ICE detainers work with local jails and what legal challenges have been raised against their use?
What steps can lawful permanent residents take before travel or if approached by ICE to reduce the risk of detention or removal?