A judicial circuit is a specific geographical area where a court has the authority to hear and decide legal cases. Each circuit typically includes multiple counties or regions, allowing for a more organized and efficient judicial process. The structure helps manage the caseload and ensures that legal matters are addressed within a defined area. In the United States, the federal court system is divided into several judicial circuits, each overseen by a court of appeals. These circuits play a crucial role in interpreting laws and ensuring justice is served, as they handle appeals from lower courts within their jurisdiction.