How does ice know who to arrest
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Last updated: April 8, 2026
Key Facts
- ICE was established in 2003 as part of the Department of Homeland Security following the 9/11 attacks
- In FY2022, ICE conducted 142,750 administrative arrests nationwide
- 74% of ICE arrests in FY2022 involved individuals with criminal histories
- ICE maintains over 200 databases including EID and IDENT systems
- The agency prioritizes arrests based on categories including national security threats and recent border entrants
Overview
U.S. Immigration and Customs Enforcement (ICE) is the principal investigative arm of the Department of Homeland Security (DHS), established on March 1, 2003, as part of the Homeland Security Act of 2002 following the September 11, 2001 terrorist attacks. With an annual budget of approximately $8.3 billion in 2022 and over 20,000 employees, ICE operates through three main directorates: Homeland Security Investigations (HSI), Enforcement and Removal Operations (ERO), and Office of the Principal Legal Advisor. The agency's mission includes enforcing immigration laws, preventing terrorism, and combating transnational crime. ICE's authority stems from the Immigration and Nationality Act, which grants broad powers to detain and remove non-citizens who violate U.S. immigration laws. The agency operates detention facilities across the country and collaborates with other federal, state, and local law enforcement agencies through programs like 287(g), which allows designated officers to perform immigration enforcement functions.
How It Works
ICE identifies individuals for potential arrest through a sophisticated data-driven process that begins with information gathering from multiple sources. The agency accesses and analyzes data from various systems including the Enforcement Integrated Database (EID), which contains over 20 million records, and the Automated Biometric Identification System (IDENT), which stores biometric data on millions of individuals. ICE prioritizes targets using a risk-based approach established in 2017 guidelines that categorize individuals into three priority levels: Priority 1 includes threats to national security, border security, and public safety; Priority 2 covers recent border entrants (within 2 years); and Priority 3 includes other immigration violators. Field officers use this prioritization system along with intelligence from investigations, tips from the public, referrals from other agencies, and court records to identify specific individuals. Once identified, ICE officers typically conduct surveillance, verify identities through multiple databases, and coordinate operations that may involve arrests at homes, workplaces, or during check-ins at ICE offices.
Why It Matters
ICE's enforcement activities have significant real-world impacts on immigration policy, community safety, and individual lives. The agency's operations affect approximately 11 million undocumented immigrants living in the United States and influence migration patterns from Central America and other regions. ICE arrests can lead to family separations, with over 5,000 children separated from parents during enforcement actions in recent years according to government reports. The agency's work intersects with critical issues including labor markets (affecting industries that employ immigrant workers), public health (through detention facility conditions), and international relations (particularly with Mexico and Central American countries). ICE's enforcement priorities and methods remain politically contentious, with debates about due process, racial profiling, and the balance between national security and civil liberties continuing to shape immigration policy discussions at local, state, and federal levels.
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Sources
- ICE Official Website - About ICEPublic Domain
- DHS Immigration Statistics Yearbook 2022Public Domain
- ICE Enforcement and Removal Operations Fact SheetPublic Domain
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