HSI’s Countering Transnational Organized Crime Division furthers HSI’s mission by supporting investigations and operations related to transnational crime, financial and narcotics violations, human trafficking and smuggling, public safety, and labor exploitation. It also supports law enforcement partners through training, technical assistance, forensic laboratory analysis and labor exploitation.

Countering Transnational Organized Crime includes Transnational Organized Crime Divisions I and II, which together integrate a variety of programs and operations that investigate transnational criminal organizations, support field office investigations through training and capacity building and partner with governmental, non-governmental and industry organizations to disrupt and/or dismantle criminal networks. In addition, the Investigative Services Division is responsible for providing investigative support services, including technical assistance and guidance to all HSI undercover operations, polygraph operations, tactical and emergency response programs, victim assistance and special agent basic training, as well as overseeing the HSI Forensic Laboratory.