What was the original purpose of the criminal justice system in the us

The original purpose was similar to the purpose it has today. I think the words criminal justice system speaks for itself. A criminal justice system is made for criminal justice. Criminals are people who violate a systems laws and regulations. This harms not only others but a created system of regulation itself. There has to be justice for criminals- this really benefits them in the end.

after the roman empire, the catholic church began to unify by taking on many duties of a government.