Under our form of government, each State and the Federal Government has its own criminal justice system. All systems must respect the rights of individuals set forth in court interpretation of the U.S. Constitution and defined in case law.

State constitutions and laws define the criminal justice system within each State and delegate the authority and responsibility for criminal justice to various jurisdictions, officials, and institutions. State laws also define criminal behavior and groups of children or acts under jurisdiction of the juvenile courts.

Municipalities and counties further define their criminal justice systems through local ordinances that proscribe the local agencies responsible for criminal justice processing that were not established by the State.

Congress has also established a criminal justice system at the Federal level to respond to Federal crimes such a bank robbery, kidnaping, and transporting stolen goods across State lines.

The response to crime is mainly a State and local function

Very few crimes are under exclusive Federal jurisdiction. The responsibility to respond to most crime rests with State and local governments. Police protection is primarily a function of cities and towns. Corrections is primarily a function of State governments. Most justice personnel are employed at the local level.

To Criminal Justice System flowchart & table of contents