In cases heard by courts, only <u>federal court</u> rulings can be applied nationally.
The federal court system has 3 main levels: district courts (the trial courtroom), circuit courts which are the primary level of appeal, and the ideally suited court of the united states, the final level of attraction within the federal device.
Typically, the court hears cases that have been determined in both an appropriate U.S. Court of Appeals or the highest court in a given state (if the state courtroom decided a Constitutional issue). The supreme court has its own set of policies. according to these rules, four of the nine Justices must vote to accept a case.
Simple distinctions have to be made among criminal and civil courts, between courts of standard jurisdiction and people of constrained jurisdiction, and among appellate and trial courts. There also are constitutional, federal, and transnational courts.
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