If the highest court in state A defines malice, what authority does that definition hold for lower courts in state A?

The definition of malice provided by the highest court in state A holds as mandatory authority for lower courts within the same state. This is because, in a given jurisdiction, the decisions of the highest court set the binding precedent that lower courts are required to follow. This principle adheres to the doctrine of stare decisis, which emphasizes the authority of higher court decisions to guide legal interpretations and rulings in subsequent cases.

Lower courts must adhere to the definitions and legal standards established by the highest court to maintain consistency and predictability in the law. If a lower court were to ignore or deviate from this definition, it could be subject to appeal, and a higher court may reverse its decision based on the authoritative precedent set by the highest court.

This framework underscores the hierarchical nature of the court system, where rulings from higher courts serve as binding authority on lower courts, ensuring that similar cases are treated uniformly within that jurisdiction.