In a common-law system the written (legislated) law is not actually the law, it's the court's interpretation of how it should be applied, taking into account si

In a common-law system the written (legislated) law is not actually the law, it's the court's interpretation of how it should be applied, taking into account similarities to other laws and the precedents set in applying them, that determines what it actually means. That makes it quite subjective and vulnerable to initial precedents in applying it.