This article provides a quick overview of Taiwan's three-tiered criminal procedure system. In Taiwan, criminal proceedings follow a three-tiered, three-trial system, a crucial institutional framework for ensuring judicial fairness and protecting the legitimate rights and interests of the parties involved. The three courts are the District Court, the High Court, and the Supreme Court, each with its clearly defined functions and responsibilities. The District Court, as the court of first instance, is responsible for the initial hearing of the vast majority of criminal cases. Here, the investigation of facts and the application of law begin for the first time. Both the prosecution and the defense fully present their arguments and submit evidence. The judge of the District Court makes a comprehensive judgment based on the content presented by both parties and renders a first-instance judgment. This judgment often forms an important basis for the parties' subsequent legal actions. The High Court assumes the function of second instance. When a party is dissatisfied with the first-instance judgment of the District Court, they can appeal to the High Court. The High Court conducts a comprehensive review of the first-instance judgment, examining not only the correctness of the application of law but also the accuracy of the determination of the facts of the case…