Which agency is responsible for protecting the federal courts and ensuring the effective operation of the judicial system?

The United States Marshals Service is responsible for protecting the federal courts and ensuring the effective operation of the judicial system. This agency has a critical role in providing security for the federal judiciary, which includes safeguarding judges, jurors, and witnesses, as well as managing the transportation and custody of federal prisoners. The Marshals are integral to upholding the rule of law and ensuring that court proceedings can occur without disruption or danger.

Additionally, the responsibilities of the U.S. Marshals extend to executing federal court orders, apprehending fugitives, and managing assets seized from criminal enterprises. This specialized role highlights their unique position as a law enforcement agency focused specifically on supporting the judicial system.

In contrast, while the Federal Bureau of Investigation (FBI) investigates federal crimes, the U.S. Secret Service primarily protects high-profile individuals and investigates financial crimes, and the Department of Justice oversees the entire federal legal system, it does not directly provide court security. Thus, the United States Marshals Service stands out as the agency best suited for the specific task of protecting the federal courts and ensuring their operation.