<s>[INST] However, with the introduction of case law as a source of law, the doctrine of stare decisis is a very central part. The role of common law judges is crucial in applying stare decisis not only to prior judicial decisions, but also to the common law principles they enunciate. This application of stare decisis is significant because in the common law legal system, court decisions are considered as statements of principles of law. Therefore, the doctrine of stare decisis directs judges to respect previous court pronouncements, in the interest of legal certainty and stability. In summary, the doctrine of stare decisis is an important part of common law legal system, playing a vital role in shaping the path of law and ensuring predictability and consistency in the legal system.[/INST]