What is the function of precedential cases within legal systems?

Precedential cases play a crucial role in legal systems by serving as authoritative references for resolving similar future cases. This principle is known as "stare decisis," where courts are expected to follow the precedents established in previous rulings unless there is a compelling reason to depart from them. By relying on precedential cases, the judiciary ensures consistency and predictability in the application of the law, allowing individuals and legal practitioners to anticipate how the law is likely to be applied in similar circumstances.

The reliance on established precedents fosters stability in legal interpretations, encouraging adherence to established legal principles and promoting fairness in judicial decision-making. This system ultimately enhances the rule of law and public confidence in legal proceedings, as parties can expect similar outcomes in cases with comparable facts.