Core Responsibilities
The U.S. Marshals Service performs several critical functions within the federal justice system. They protect federal judges, prosecutors, and witnesses in courthouses across the country. They also transport federal prisoners between facilities and manage custody of defendants awaiting trial. Additionally, they locate and capture fugitives who have fled federal charges or violated federal probation.
Witness Security Program
One important role of the U.S. Marshals Service is running the Witness Security Program, also known as the Witness Protection Program. This program relocates and protects witnesses who testify in significant federal cases, particularly those involving organized crime or gang activity. The marshals help witnesses and their families create new identities and live safely in new locations.
Fugitive Apprehension
The U.S. Marshals Service maintains a national network of investigators focused on tracking down federal fugitives. They work with state and local law enforcement agencies, as well as international partners, to locate and arrest people wanted for federal crimes. The agency also maintains wanted lists and offers rewards for information leading to arrests.
Court Operations
Marshals provide security at all federal courthouses and handle courtroom operations during trials. They ensure the safety of judges, jurors, attorneys, and the public during court proceedings. They also maintain custody of prisoners during court appearances and manage courthouse access and screening.
History and Authority
The U.S. Marshals Service was established in 1789, making it older than the FBI. It is part of the U.S. Department of Justice and operates nationwide. Marshals have the authority to enforce federal law, make arrests, and investigate federal crimes within their jurisdiction. 
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