The criminal justice system is made up of thousands of local, state and federal agencies that work to control crime and punish law violations. It involves law enforcement agencies that make over 11 million arrests each year, prosecutorial agencies that hear over 96 million cases, and correctional institutions that supervise over 7 million people. The formal criminal justice process follows specific steps - from initial contact and investigation by police, to prosecution, adjudication by courts, and corrections including incarceration, release and post-release supervision. Reforms aim to reduce incarceration and focus more on rehabilitation through treatment programs.