United States Flag
Official Website of the Department of Homeland Security

Report Crimes: Email or Call 1-866-DHS-2-ICE

The National Security Unit (NSU) serves as a comprehensive unit to provide for the complete integration of national security investigations and counterterrorism efforts within the National Security Investigations Division. NSU has programmatic oversight of HSI’s participation on the Joint Terrorism Task Forces (JTTF), serves in a leadership position on the National Joint Terrorism Task Force, and works directly with the National Security Council and senior leadership throughout the interagency to develop, facilitate, and implement unified interagency policy in support of the counterterrorism mission.

The Counterterrorism Section (CTS) within NSU provides programmatic oversight and investigative support to HSI’s Special Agents assigned to every JTTF nationwide. CTS ensures that HSI Special Agents assigned to the JTTF program are engaged in every investigation where our unique immigration or trade-based authorities may be used to disrupt terrorist networks and prevent attacks against the homeland.   

The National Security Threat Section (NSTS) within NSU is co-located with the U.S. Customs and Border Protection, National Targeting Center – Passenger. NSTS provides ongoing reviews of individuals who are possibly of national security concern as well as any threats to national security and U.S. interests overseas, and notifies HSI Special Agents both domestically and abroad when this information is received.

Homeland Security Investigations (HSI) Special Agents lead the Department of Homeland Security’s (DHS) investigative counterterrorism efforts on the Joint Terrorism Task Force (JTTF) by utilizing a broad range of criminal and administrative authorities to detect, investigate, interdict, prosecute and remove terrorists and dismantle terrorist organizations.  HSI is the largest federal contributor to the JTTF and has Special Agents represented at every JTTF office nationwide. 

HSI Special Agents are involved in nearly every foreign terrorism investigation where HSI equities related to immigration or trade-based crime can be utilized in furtherance of the counterterrorism mission.  These include investigations into terrorist financing, intellectual property rights (IPR), immigration fraud, war crimes, contraband and human smuggling, trans-border cybercrimes, counter-proliferation and export enforcement.  Foreign terrorists need to move money, weapons, and people across international borders to conduct their operations, and HSI holds a unique set of law enforcement tools for disrupting these illicit activities.

The Counterterrorism Section (CTS) within the National Security Unit provides programmatic oversight and investigative support to HSI’s Special Agents assigned to every JTTF.  CTS ensures that HSI Special Agents assigned to the JTTF program are engaged in every investigation where our unique immigration or trade-based authorities may be used to disrupt terrorist networks and prevent attacks against the homeland.  CTS works with ICE and other agencies’ legal counsel to facilitate field and headquarters coordination of ongoing national security and counterterrorism investigations that will promote the most successful legal and operational outcome.  CTS also coordinates within DHS and with other agency partners to develop and implement national security-related policy.
 
In fiscal years 2012 and 2013, HSI Special Agents initiated more than 1,500 national security-related investigations in support of the counterterrorism mission. During that same period, HSI Special Agents made more than 900 criminal and administrative arrests and conducted more seizures of money, arms, contraband and other assets related to illegal activities in support of terrorism than in previous years. These efforts significantly contributed to preventing and disrupt national security threats against the United States.

The National Security Threat Section (NSTS) within NSU is co-located with the U.S. Customs and Border Protection, National Targeting Center – Passenger.  NSTS provides ongoing reviews of individuals who are possibly of national security concern as well as any threats to national security and U.S. interests overseas, and notifies HSI Special Agents both domestically and abroad when this information is received. 

NSTS maintains continuous coordination and collaboration with the National Counterterrorism Center (NCTC), the Terrorist Screening Center (TSC), the Terrorist Screening Operations Unit (TSOU), and other members of the Intelligence Community.  The combined interagency effort of HSI and CBP at the National Targeting Center has enhanced the overall commitment and coordination of JTTF agents’ responses to threats to national security.  This partnership has also increased investigative leads being sent to HSI Special Agents in the field, facilitated interagency coordination and cooperation, and contributed significantly to the overall effort to inhibit terrorist travel into the United States.