Won't go here, other than to say that 'the law' needs to be defined a bit more before I will get into a discussion about it.
The Law from the perspective of anyone but those practicing “Pharisaical Judaism” can only be the written Torah, but even that breaks down into the parts that affect everyone, and those that affect the various sub groups of Hebrews, and then there are also the covenant issues like circuncision.
The “oral Torah” is no more valid than the catholic “traditions.”