International Operations protects the homeland by coordinating and conducting international investigations and law enforcement operations in partnership with foreign counterparts to detect, deter, and dismantle transnational criminal organizations and prevent terrorist activity.

International Operations maintains a network of offices and liaisons around the world who leverage the joint capacity of HSI and international partners to advance investigations and diminish the capability of transnational criminal organizations and terrorists to threaten our national security.

International Operations is the largest international investigative arm of DHS. It interacts with the international law enforcement community to investigate all manner of criminal activity, including customs and immigration violations. In addition to pursuing and supporting cases in all HSI investigative disciplines, International Operations manages the Visa Security Program (VSP), the Transnational Criminal Investigative Unit (TCIU) Program, and the Biometric Identification Transnational Migration Alert Program (BITMAP). International Operations also delivers international training to foreign partners and supports global law enforcement capacity building efforts.