A reference to "The Fourth Law" in that context is quite ambiguous, because not ...

A reference to "The Fourth Law" in that context is quite ambiguous, because not only did Asimov introduce a "Zeroth Law" that is sometimes also called the Fourth, but also subsequent fanfic introduced "Fourth Laws" that had different texts and different objectives, including one by a Bulgarian author. So there is no singular or canon "Fourth Law of Robotics".