"This report describes criminal case processing in the federal justice system, including arrest and booking through sentencing and corrections. These statistical tables present the number of suspects arrested and booked by the U.S. Marshals Service (USMS), suspects in matters investigated and prosecuted by U.S. attorneys, defendants adjudicated and sentenced in U.S. district court, and characteristics of federal prisoners and offenders under federal supervision. Data are from the Bureau of Justice Statistics' (BJS) Federal Justice Statistics Program (FJSP), which collects comprehensive information describing suspects and defendants processed in the federal criminal justice system and annual data on workload, activities, and outcomes associated with federal criminal cases."
Bureau of Justice Statistics: http://www.bjs.gov/