Four advantages of case law are:

1. Consistency and Predictability: Case law ensures consistency and predictability in legal decisions as similar cases are decided in the same manner.
2. Detailed Guidance: Provides detailed guidance on the application of legal principles through specific case examples.
3. Flexibility: Allows the law to evolve and adapt over time through judicial interpretations and refinements.
4. Filling Gaps: Serves to fill gaps in statutory law where no legislative provision exists, offering solutions based on past judgments.