What types of investigations are conducted by HSI?

The selection that identifies the types of investigations conducted by Homeland Security Investigations (HSI) is accurate because HSI has a broad mandate that includes addressing serious national security and public safety threats. This encompasses investigating human trafficking, which involves the exploitation of individuals for labor or commercial sex; drug smuggling, which poses significant health and safety risks; cybercrime, which includes online criminal activities that can disrupt economies and endanger lives; and intellectual property crimes, which hurt innovation and economic stability.

These areas align with HSI’s primary focus on enforcing laws related to immigration and customs, as well as criminal activities that threaten the nation's security, economy, and public safety. The other choices, while they may encompass critical issues, do not fall within the primary scope of HSI's operations. Environmental violations and natural resource exploitation, for instance, would typically be under the jurisdiction of agencies focused on environmental protection, while land use disputes and zoning violations are more within local governance and planning authorities. Financial fraud and tax evasion can involve many entities, but they are not the specific focus of HSI, which primarily targets crimes with direct implications for homeland security.