Understanding the Role and Operations of U.S. Immigration and Customs Enforcement

U.S. Immigration and Customs Enforcement (ICE) serves as a critical component of the United States Department of Homeland Security. Established on March 1, 2003, following the September 11 attacks, the agency was formed to consolidate the criminal investigation resources of the former Immigration and Naturalization Service and the United States Customs Service. Today, it remains the primary federal law enforcement agency tasked with enforcing immigration laws, conducting criminal investigations, and preserving national security.

Core Components and Mission

The mission of ICE is multifaceted, focusing on protecting public safety through the enforcement of more than 400 federal statutes. To execute these duties, the agency operates through two distinct law enforcement components:

• Homeland Security Investigations (HSI): This division focuses on investigating a wide range of domestic and international activities arising from the illegal movement of people, goods, and money. This includes combating transnational crime, such as the trafficking of illegal merchandise, weapons, and narcotics.
• Enforcement and Removal Operations (ERO): This component is responsible for the identification, arrest, and removal of individuals who are in the United States in violation of immigration laws. ERO manages interior enforcement efforts and oversees the detention of individuals pending legal proceedings or removal.

In addition to these operational arms, ICE is supported by the Office of the Principal Legal Advisor (OPLA), the Office of Professional Responsibility (OPR), and the Management and Program Administration division.

Enforcement Priorities and Public Safety

ICE’s operations are designed to address threats to community safety. The agency frequently partners with state and local law enforcement through the 287(g) program, which allows local agencies to assist in immigration enforcement efforts. The agency maintains the Victims of Immigration Crime Engagement (VOICE) Office, which provides resources to victims and families impacted by crimes linked to immigration.

Recent enforcement actions reported by the agency highlight its focus on high-profile cases, including the arrest of international fugitives, suspected gang members, and violent offenders. The agency also maintains strict guidelines regarding enforcement actions taken in or near protected areas to balance its mission with sensitive community concerns.

Key Takeaways

• Agency Scope: ICE operates under the Department of Homeland Security with a workforce of over 21,800 employees as of 2025.
• Operational Focus: The agency manages both interior enforcement and investigations into illegal cross-border movement of contraband and people.
• Reporting Violations: The federal government encourages the reporting of suspected immigration or customs violations directly to ICE.

Frequently Asked Questions

What is the primary purpose of ICE?

ICE’s stated mission is to conduct criminal investigations, enforce immigration laws, preserve national security, and protect public safety. It operates both within the interior of the United States and at the border.

How does ICE interact with local law enforcement?

Through the 287(g) program, state and local law enforcement agencies can enter into formal partnerships with ICE to assist in the enforcement of federal immigration laws within their jurisdictions.

Where can I find information about recent ICE enforcement activities?

Official updates, press releases, and information regarding agency operations are available through the official ICE newsroom and the broader Department of Homeland Security website.

As of May 18, 2026, ICE continues to operate under the leadership of its executive team, including Acting Director Todd Lyons and Deputy Director Charles Wall, to uphold its mandate of protecting national security and public safety.