Judicial doctrines are established principles or rules that guide courts in making decisions. They help ensure consistency and predictability in the legal system by providing a framework for interpreting laws and applying them to specific cases. These doctrines can evolve over time as courts interpret laws in new contexts. Common examples of judicial doctrines include stare decisis, which emphasizes the importance of following precedents set by previous court decisions, and judicial review, which allows courts to assess the constitutionality of legislative and executive actions. These doctrines play a crucial role in shaping legal outcomes and maintaining the rule of law.