Law Enforcement Detachments or LEDETs are specialized, deployable maritime law enforcement teams of the United States Coast Guard. First established in 1982, their primary mission is to deploy aboard U.S. and allied naval vessels to conduct and support maritime law enforcement, interdiction, or security operations. LEDETs are the operational elements of the Coast Guard’s two Tactical Law Enforcement Teams (TACLETs) which were part of the Coast Guard’s Deployable Operations Group (DOG) from 2007 to 2013. As of April 2010 there are seventeen LEDETs.
The Coast Guard officially established the Law Enforcement Detachment program in 1982. The first LEDETs operated directly under Coast Guard groups and districts, where they served as law enforcement specialists, conducting training and local operations. In 1986, Public Law (P.L.) 99-570 specifically authorized the establishment of billets for active duty Coast Guard personnel to carry out drug interdiction operations from naval surface vessels provided by the Department of Defense (DoD). Since the Posse Comitatus Act and department policy strictly prohibit Department of Defense personnel from directly engaging in law enforcement activities, LEDETs were tasked with operating aboard United States Navy (USN) ships to investigate contacts and conduct boardings in accordance with Coast Guard policy and directives. In accordance with P.L. 99-570, LEDETs were to deploy aboard U.S. Navy "ships of opportunity", transiting or operating in areas frequently used by illegal drug traffickers. In 1988, P.L. 100-456 made it a requirement that Coast Guard law enforcement personnel be assigned to each appropriate Navy surface vessel that transits a drug interdiction area.
The 1989 National Defense Authorization Act designated the DoD as the lead agency of the Federal Government for the detection and monitoring of aerial and maritime trafficking of illegal drugs into the United States or any of its commonwealths, territories, or possessions. In turn, the Coast Guard was designated the lead agency for the interdiction and apprehension of illegal drug traffickers on the high seas. In order to meet these statutory responsibilities, the DoD began deploying surface assets to drug interdiction areas, making ships available for direct support of Coast Guard law enforcement operations.