Answer
In the U.S. there are both state & federal ('circuit') appellate courts, and, of course, the U.S. Supreme Court - which only hears cases on appeal.
In general, almost any case can be appealed to the appropriate court, usually due to some allegation of improper trial procedure or misinterpretation of law...
So, basically, they can originate anywhere.
Answer
In the federal judiciary, general jurisdiction cases begin in courts of original jurisdiction (i.e., trial courts), such as US District Courts, United States Tax Court, United States Bankruptcy Court, etc., that are located within the territory covered by the US Court of Appeals for one of the one of the 12 regional Circuits. (There are 13 Circuit Courts, but one is defined by subject matter rather than geography).
The US Court of Appeals for the Federal Circuit hears cases that originate anywhere in the nation, but only for special subject matter, such as international trade, government contracts, trademarks, patents, financial claims against the US (other than tax-related claims), and veterans' benefits.
The US Court of Appeals for the District of Columbia Circuit currently has jurisdiction over appeals from tribunal courts at Guantanamo Bay, in addition to its standard caseload.
At the state level, the general jurisdiction court for criminal charges is often (but not always) called "Superior Court"; however, both civil and certain criminal cases may start in county Courts of Common Pleas, and may be eligible for appeal through the State Court of Appeals.
Because each state and municipality is unique, it would be impossible to name all the potential special courts and tribunals where a case may originate.
(Supreme Court)
Federal district court.
Most cases reach the US Supreme Court via the US Court of Appeals Circuit Courts, which are part of the federal court system.
Easy cases are adjudicated by lower courts. Harder cases are decided by the higher courts.
Most cases reach the Court through the U.S. Courts of Appeals Circuit Courts, or, under rare circumstances, may be received on expedited appeal from US District Court in the federal court system. The Supreme Court also reviews cases on appeal from state supreme courts, and occasionally from state intermediate appellate courts if the state supreme court rejects the case. The US Supreme Court only has jurisdiction over cases involving a preserved federal question (a matter of federal or constitutional law, or a US treaty).Most Supreme Court cases come from a writ of certiorari. This is the order of the Supreme court to a lower court to send up a case so they can review. Most of these reviews come from state high courts and federal appellate courts.Origin of US Supreme Court CasesUS Court of Appeals Circuit CourtsState Supreme Courts (or their equivalent)US District Courts (under special circumstances, only)US Court of Appeals for the Armed ForcesUS Court of International TradeUS Court of Federal ClaimsIntermediate State appellate courts (if the State Supreme Court rejects the appeal)
All cases start out in lower local courts to be heard. After the initial verdict the party that feels that they should have gotten a different outcome they will appeal. The Supreme Court is the highest court of appeals and the verdicts can be fought all the way to them.
Precedents
State Supreme Courts do not routinely review all cases of all lower courts. They review ONLY those cases that finally reach them after going through the court system's appelate process
Generally speaking, most lower court cases do not reach a court of appeals. One factor is cost. Even if a lawyer is sure a court of appeals will review a case, that may not be a certainty. Then, how the appeals courts will rule is also generally not known. An appeals court may review a lower court's decision and determine that proper, lawful procedures were not taken by the prosecutor and perhaps the lower court case judge made a serious procedural error. The response of the court may be to overturn the case's verdict or confirm the verdict. Also, the appeals court may decide, after a proper review that the case does not meet state standards for a review.
Yes. US District Courts are the court of original jurisdiction for many cases that eventually reach the US Supreme Court. Approximately two-thirds of the Supreme Court's caseload comes from the federal court system, and most of those cases start with a trial in US District Court.
Most civil cases are settled outside of court. Most criminal cases are finalized with a plea bargain.
US District Courts (trial courts) use juries as triers of fact. The Sixth Amendment guarantees the right to a trial by jury in criminal cases; however, the defendant also has the option of requesting a bench trial where the judge takes the place of the jury.Appellate courts, such as the US Courts of Appeals Circuit Courts and the US Supreme Court, do not use juries because they are not triers of fact. Appellate courts only review cases to determine whether trials were conducted according to law and constitutional protections, in an attempt to ensure the party or parties in the case received a fair hearing.
The Supreme Court does not hear cases. They can only make judgements if the persons rights or laws have been violated within the lower courts. They resolve issues based on constitution and due process. If a person's rights have been violated during trail then the the parties have the right to appeal their case. Many cases however never reach the Supreme Court.