This report provides national statistics on the federal response to crime for fiscal year 2023 and some statistics on changes over time. It describes case processing in the federal criminal justice system, including investigations by U.S. attorneys, prosecutions and declinations, convictions and acquittals, sentencing, probation and supervised release, and imprisonment. It also includes a new section detailing the federal criminal justice system’s response to immigration violations. This is the 37th report in an annual series based on data from BJS’s Federal Justice Statistics Program, which began in 1979.