Which branch primarily regulates the performance of customs law enforcement officers?

The Department of Homeland Security (DHS) is primarily responsible for regulating customs law enforcement officers due to its oversight of agencies that handle border protection and customs enforcement. Within DHS, Customs and Border Protection (CBP) is the primary agency tasked with enforcing customs laws and ensuring that international trade regulations and border security policies are adhered to. The role of CBP includes preventing smuggling, collecting tariffs, and enforcing immigration laws, all aspects that fall under customs law enforcement.

The integration of multiple functions related to customs—such as immigration and border security—under the DHS streamlines the enforcement and regulatory processes, ultimately enabling a more cohesive approach to national security and trade enforcement. This enables customs officers to operate under clear guidelines and regulations set forth by the DHS, ensuring that they are effectively fulfilling their duties in accordance with federal laws and policies.