On the criminal side, I agree on passing the knowledge concerning this behavior on to the appropriate authorities. I don't know all the details, but it is plausible that some crimes have been committed, but that is for the authorities to ultimately decide and investigate.
As far as the civil case, I agree that it is probably worth at least a conversation with an attorney experienced in this area of law. I'd trust NWBO to weigh the pros and cons of a potential suit and proceed accordingly at this point. Some of these claims might have to be brought by Dr. Liau depending on the circumstances.