I'm not certain but you could be referring to the US South Pole station.
However, for any criminal acts occurring there the US does maintain jurisdiction over the civilian employees for a charge of "Criminal Act Committed on a Federal Reservation" and themilitary personnel are subject to Military Law.
OR - you could be referring to the various Native American "nations" within the country who have their own tribal laws, police, and courts.
Only in special cases, otherwise it mainly deals with jurisdiction with in the court's circuit. Yes, it does have nationwide jurisdiction. The US Court of Appeals for the Federal Circuit hears appeals from the US Court of International Trade and the US Court of Federal Claims regardless of where the trial was held. Its jurisdiction is defined in terms of subject matter as opposed to territory the way the jurisdiction of the other twelve circuit courts of appeals is defined. In that sense, the Court of Appeals for the Federal Circuit has no territorial limitations on its jurisdiction.
No. The US Supreme Court only exercises appellate jurisdiction over criminal cases originating in the state and federal court systems; they do not hold trials. The federal court of original jurisdiction (trial court) for a murder case would be the US District Court overseeing the territory in which the crime occurred.
US district courts have trial jurisdiction (aka original jurisdiction) over federal court cases.
Yes. In the US federal court system, US Court of Appeals Circuit Courts have appellate jurisdiction.
In the US it is the Supreme Court of the United States.
Federal trial courts almost always have original jurisdiction in the federal system.
US District Courts have original (trial) jurisdiction over the majority of cases heard in the federal court system.US Special Courts, such as US Tax Court, US Bankruptcy Court, and the US Court of Federal Claims, also hear a large number of cases.
In the District of Columbia, legal cases are tried in the US District Court for the District of Columbia, which is part of the federal court system because Washington, DC, is federal territory, not a state. Similarly, each US Territory (e.g., US Virgin Islands, Guam, Northern Marianna Islands) has a territorial court that operates as a remote district court. Appeals of cases heard in territorial courts are filed with whichever US Court of Appeals Circuit Court has jurisdiction over that particular territory.
Twelve.Twelve of the thirteen US Court of Appeals Circuit Courts have territorial jurisdiction over cases heard in US District Courts within their Circuit.The US Court of Appeals for the Federal District (the thirteenth intermediate appellate court) has nationwide jurisdiction over cases involving special subject-matter jurisdiction from such courts as the US Court of International Trade and the US Court of Federal Claims.
The US Courts of Appeal have jurisdiction over the decisions of the subordinate US District Courts assigned to their responsibility. They hae jurisdiction over any trial or action which may be appealed to them but they are not a trial court.
Cases that have federal jurisdiction. They can either arise under federal law or be state law cases that gain jurisdiction through diversity jurisdiction.
US District Courts have original jurisdiction in most cases of general jurisdiction; however the US Supreme Court has original jurisdiction in a limited class of cases, such as those involving disputes between the states.