The Federal Probation Service is a federal agency that serves as the community corrections arm of the federal judiciary. It was established in 1925, shortly after the enactment of the Federal Probation Act. It serves the U.S. district courts in all 94 judicial federal districts. It administers probation and supervised release under U.S. federal law. It is also known as the United States Probation Service.
The federal probation service is an arm of the court, and not an investigative arm for the prosecution. [Bernegger v. Morrissette, 2009 U.S. Dist. LEXIS 28432 ]. Its services are spread throughout the U.S.