Under the Constitution of the U. S. A. there are three distinct and separate branches of government. They are Executive, Legislative and Judicial. I cite this, because the criminal justice system gets it power and model from the constitution. The Legislature writes a law and enacts it, the executive branch has the power and duty to enforce the law and the Judicial reviews the law to ensure it is constitutional. That is the function of the Supreme Court, they are a group of Justices selected by the Executive branch (president) for a lifetime appointment, then reviewed and approved by the legislative branch or disapproved, and there are a total of 9 Justices including the Chief Justice. The justices review cases on a case by case basis that