Homeland Security Investigations

Homeland Security Investigations (HSI) is a division of U.S. Immigration and Customs Enforcement responsible for investigating and enforcing laws related to national security, border control, customs, trade, and immigration. They tackle complex crimes such as drug trafficking, human smuggling, human trafficking, financial fraud, cybercrime, and terrorist activities. HSI collaborates with other agencies domestically and internationally to protect the United States from threats and criminal enterprises. Their work involves intelligence gathering, surveillance, and investigations to ensure safety and uphold the rule of law.