The INTERPOL-USNCB operates through well-established cooperative efforts with federal and state agencies. Pursuant to an interagency agreement between the Departments of Justice and Treasury, the INTERPOL-USNCB is an integral part of the Department of Justice, acting in conjunction with the Department of Treasury, which provides the Secretary of the Treasury as the alternate U.S. representative to INTERPOL.
The INTERPOL-USNCB is staffed by members of both federal and state law enforcement agencies. From the Department of Justice, the INTERPOL-USNCB has a core of permanent and temporary employees, as well as detailed staff members representing the Drug Enforcement Administration, the U.S. Marshals Service, the Immigration and Naturalization Service, the Federal Bureau of Investigation, and the Criminal Division.
From the Department of the Treasury, there are representatives of the U.S. Secret Service, the Internal Revenue Service, the U.S. Customs Service, the Bureau of Alcohol, Tobacco and Firearms, the Comptroller of the Currency, and the Financial Crimes Enforcement Network (FINCIN). Other agencies represented at the USNCB include the Postal Inspection Service, the U.S. Department of Agriculture Office of the Inspector General, and the State Department Bureau of Diplomatic Security, the Environmental Protection Agency, and the Massachusetts State Police.