Criminal courts are usually trial courts with the authority to hear only matters relating to criminal prosecutions—and are said to have exclusive jurisdiction of criminal matters within the county, for example. And in some states there are appellate courts with exclusive jurisdiction over criminal appeals. For example, in Texas, the intermediate courts of appeals hear both civil and criminal cases, but the Texas Court of Criminal Appeals is the court of last resort for criminal matters, and hears appeals of criminal matters from the intermediate courts of appeal.
In West Virginia, the criminal court system is structured to handle matters specifically related to criminal prosecutions. Magistrate courts handle misdemeanor cases and preliminary hearings for felony cases. Circuit courts have the authority to hear felony cases, as well as appeals from magistrate courts and administrative agencies. West Virginia does not have intermediate appellate courts with exclusive jurisdiction over criminal matters. Instead, the West Virginia Supreme Court of Appeals is the highest court in the state and has discretionary appellate review over both civil and criminal cases from the circuit courts. This means that the Supreme Court of Appeals can choose which cases it will hear, and it serves as the court of last resort for criminal matters in West Virginia.