The gimmick is divine influence. God's divine influence supposedly assures that the theology and instructions of church authorities can be nothing but perfect truth. Thomas Aquinas explained how that works. Then, law was divided into three categories. Therefore, Natural Law is often equated with conscience.
Nobody can agree on what conscience is.
When Clarence Thomas was being confirmed by the U.S. Senate for the Supreme Court, a question arose about his previous statements on Natural Law. So the journalists went to Prof. Charles Rice, who is the foremost authority on the subject. Tell the physicists that what they are studying is the moral conscience which God created in humans. That's not what physics is considered to be. The concepts are too fluid.