I suggest we layout the more static parts as our broad aspirations... health, freedom, safety, sustainability, reduction of suffering... or whatever we agree upon, and the rest of the laws must serve those ends, our Premises and Aspirations. As for the more everyday/practical laws, I think they need to 1) be justifiable to some level of standard we create (and perhaps sunset when no longer needed), 2) be adaptable to the variety of ways one could interact with the law, 3) be in alignment with science and evidence; that is they must be proven necessary, be context aware, and be in alignment with reality. Laws have always been interpreted, and to some degree will continue to be, but we need to ground as much of it as we can in reality, science, and public good. Laws might also need to be compounding; for instance if certain patterns of criminality are expressed, we adapt the sentencing accordingly. Let me be clear, I use the term "adaptable" in regards to the categorization and contextualization of the crime, the enforcement must be clearly pre-defined and unambiguous.
We cannot continue to let religions, corporations, and nefarious organizations use the law as simply a tool to give themselves undue advantage. Laws must be a part of a system; a discussed, debated, evidence-driven, and reasoned system... not arbitrary rules created by power-hungry authoritarians. It must become a science itself, evolving, improving our lives and itself with each iteration.