Article 3

Section 1

Section 2

Authority of the courts.
They look at all cases including, any body that disobeyed the law, feuds against two or more states. And people between to states claiming land.
In all cases having to do with ambassadors or ministers they use original jurisdiction.
The trial of all crimes except impeachment will be by jury.

Federal courts and judges
Their is one Supreme Court and many inferior courts in the judicial branch.