Can FBI agents operate overseas?
Under certain circumstances. FBI agents are assigned as Legal Attaches (LEGATS) to United States Embassies overseas. While the entire Embassy operation is under the control and guidence of the US State Department’s Foreign Service Office, FBI LEGATS often work in close conjunction with the host country’s domestic law enforcement agencies at the national as well as provincial and local levels. In some, very limited situations, FBI agents have arrest powers overseas, usually only in drug, espionage and terrorism cases, and then usually only with the agreement of the host country.