Case law is based on court decisions that establish precedent, and is also called __________ law.

The correct classification for the type of law that is based on court decisions establishing precedent is common law. Common law evolves through the outcomes of various court cases and judicial rulings, rather than being written or enacted through legislation. This body of law represents the principles developed from earlier cases, which influences future decisions in similar legal contexts.

In contrast, statutory law refers to laws that have been formally enacted by a legislative body; regulatory law consists of the rules created by government agencies to implement statutory law; and mandated laws often refer to specific requirements or actions that must be taken according to existing laws. These distinctions illustrate how common law operates differently from these other forms of law, primarily relying on judicial interpretations and rulings rather than legislative action.