What establishes the procedures and rules governing the courts?

The procedures and rules governing the courts are established by court rules, which are developed by the judiciary itself to regulate the conduct of court proceedings. These rules dictate various aspects of legal proceedings, including how cases are filed, how evidence is presented, and the general conduct required during trials. Court rules are designed to ensure that the legal process runs smoothly and that there is consistency in how cases are handled across different jurisdictions.

While other options like case law, constitutional law, and statutory laws play important roles in the legal system, they focus on different aspects. Case law refers to the body of judicial decisions that interpret and apply the law, while constitutional law outlines the fundamental principles of the government and individual rights. Statutory laws are laws enacted by legislative bodies. However, it is the court rules that directly establish the procedural guidelines for the courts themselves, making them the correct answer in this context.