Special Operations Group
The Special Operations Group (SOG) was created in 1971, and is the Marshals Service's specially trained and highly disciplined tactical unit. It is a self-supporting response team capable of responding to emergencies anywhere in the US or its territories. Most of the deputy marshals who have volunteered to be SOG members serve as full-time deputies in Marshals Service offices throughout the nation, and they remain on call 24 hours a day. The SOG also maintains a small, full-time operational cadre stationed at the Marshals Service Tactical Operations Center at Camp Beauregard, where all deputies undergo extensive, specialized training in tactics and weaponry.[27] Deputies must meet rigorous physical and mental standards. The group's missions include: apprehending fugitives, protecting dignitaries, providing court security, transporting high-profile and dangerous prisoners, providing witness security, and seizing assets.
Office of Protective Operations
The Office of Protective Operations (OPO) is the United States Marshals Service's preeminent expert on physical protection. OPO provides subject matter expertise, guidance, and direct action support to district offices on high-threat/-profile proceedings and risk-/threat-based protective operations. The footprint is national, covering all twelve federal judicial circuits across the country,[28] with the ability to project globally.
Currently, the OPO is responsible for two permanent risk-based protection details for the Deputy Attorney General (DAG) and the Secretary of Education (SecEd), respectively.[29] These permanent details are staffed by Senior Inspectors who are elite members of the USMS, chosen through a highly competitive and selective process. This process identifies Deputy U.S. Marshals who possess the requisite diplomatic skills to represent the USMS to the absolute highest levels of the U.S. government, and the tactical acumen to provide robust close protection in any environment. Those selected for these details must first undergo thorough background investigations resulting in the highest possible security clearances. Once these clearances are granted, they complete extensive training in protective theory, emergency government operations, security advances, surveillance detection and avoidance, defensive tactics, firearms, advanced driving techniques, and emergency medicine.[30]
These Senior Inspectors routinely deploy across the U.S. and around the globe to protect the DAG[30] and Secretary of Education. They lead security for nominees to the U.S. Supreme Court through the pendency of the nomination, which are often fraught with threats of violence and protests.[31] They also provide security for sitting U.S. Supreme Court Justices, when those Justices are farther than 50 miles from Washington, D.C., where the U.S. Supreme Court Police have statutory protection authority.[32][33][34] As a result, they develop a deep expertise in protective operations and partner extensively with the U.S. Secret Service, Diplomatic Security Service, along with local, state, federal, and foreign law enforcement and security agencies.
The Marshals Service also executes all lawful writs, processes, and orders issued under the authority of the United States, and shall command all necessary assistance to execute its duties.
Historically, under Section 27 of the Judiciary Act of 1789 U.S. Marshals had the common law-based power to enlist any willing civilians as deputies for necessary assistance in the execution of their duties.[20] In the Old West this was known as forming a posse, although under the Posse Comitatus Act, they could not use military troops in uniform representing their unit or the military service for law enforcement duties. However, if a service member was off duty, wearing civilian clothing, and willing to assist a law enforcement officer on their own behalf, it was acceptable.[citation needed] In contemporary times, the deputation of a civilian would be extraordinarily unusual. However, the Director of the United States Marshals Service currently has the statutory authority to deputize (for one year) selected officers of the United States Department of Justice; federal, state, or local law enforcement officers; employees of private security companies to provide courtroom security for the Federal judiciary; or other persons as designated by the United States Associate Attorney General.[21]
Title 28 USC Chapter 37 § 564 authorizes United States Marshals, deputy marshals and such other officials of the Service as may be designated by the Director, in executing the laws of the United States within a State, to exercise the same powers which a sheriff of the State may exercise in executing the laws thereof.[22]
https://en.wikipedia.org/wiki/United_States_Marshals_Service