The US criminal justice system is a system that enforces the country's criminal law. In the United States, the criminal justice system falls into three categories. Federal, state, and military. In addition to these three categories, each state has a separate department to handle adult and juvenile cases. Each of these systems consists of three main parts. The first element of the criminal justice system - perhaps the most important and most dangerous - is a law enforcement agency. This includes the local police station and all its police and detectives. These people are leading the criminal justice system because they are responsible for finding and arresting individuals who violate state, federal, or military laws. Law enforcement officials are also responsible for prosecuting perpetrators and confirming that the lawsuit is strong enough to stand up in court.
Enforcement in the United States is one of three major components of the US Criminal Justice System, Court and Correction. Each component is semi-independently active, but the three components constitute a chain from investigating suspicious criminal activity to criminal punishment. Law enforcement is mainly done through government police institutions. In the United States there are 17,985 US police institutions, including police, security, local police, and federal agencies within the university campus. The purpose of law enforcement against these institutions is to investigate suspected criminal activity, submit the results to the court, and temporarily detain suspicious offenders prior to the judicial proceedings.