Appeals courts, also known as appellate courts, are higher-level courts that review decisions made by lower courts, such as trial courts. Their primary function is to determine whether legal errors occurred during the trial that could have affected the outcome. Appeals courts do not conduct new trials or hear new evidence; instead, they focus on the legal arguments presented in written briefs and oral arguments. These courts typically consist of a panel of judges who evaluate the case based on the record from the lower court. If the appeals court finds that an error was made, it can reverse or modify the decision, or sometimes send the case back to the lower court for further proceedings. Appeals courts play a crucial role in ensuring the fair application of law and maintaining consistency in the judicial system.