The article discusses the introduction of appeal courts in the Turkish judicial system after the implementation of the Criminal Procedure Code no.5271. Regional Istinaf (appeal) Courts were established in several cities, allowing for the appeal legal remedy to be put into effect. The article explains the process of filing an appeal, which decisions can be appealed, who can apply for an appeal, and the responsibilities of the trial court and the regional appeal court. Overall, the article provides an overview of the appeal process and evaluates its effectiveness in the legal system.