Answer:
The use of precedent has been justified as providing predictability, stability, fairness, and efficiency in the law. Reliance upon precedent contributes predictability to the law because it provides notice of what a person's rights and obligations are in particular circumstances.
Another answer for it:
However, judicial precedent does have its advantages. The main advantage of using precedent is that it provides certainty in the law. As cases with sufficiently similar material facts are bound by past decisions, it provides an idea of how the case will be decided.
pick any of these :))