The United States States District Courts, of which there are 94.
In US the lowest level of court is District Court.
district court
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The lowest general level in the Federal System is the Federal District Court, which sits in a defined federal district. An example would be the "Federal district Court for the Western District of Oklahoma" This district court answers to the Circuit Court ( e.g. 10th Circuit etc.) and then to the US Supreme Court by Certiori
In the Federal Court System, the US District Courts ARE the lowest level of court, and have original jurisdiction (over FEDERAL offenses) within their assigned districts (of which, I believe, there are 94).
In the Illinois state court system, the trial courts are called Circuit Courts and are the lowest courts. Trial court decisions may be appealed to appeals courts within the state court system. For more information on the Illinois court system, see the Illinois Court Directory related link.
U.S. District Courts
The district courts, I believe there are 94 of them
The lowest general level in the Federal System is the Federal District Court, which sits in a defined federal district. An example would be the "Federal district Court for the Western District of Oklahoma" This district court answers to the Circuit Court ( e.g. 10th Circuit etc.) and then to the US Supreme Court by Certiori
(in the US) That would be the lowest level court in the state system usually known (in most states) as the Circuit Courts.
(in the US) Felonies are considered o be "crimes against the state" and they would be heard in the lowest level of the state court system. States may call them by different names, but usually they are known as "Circuit Courts," or "District Courts." Only if the felony crime that was committed was a federal offense, would it be tried in a US District Court.