Interesting. I heard a new to me term this week that I have been trying to find more information on.

The term is called Fraudulent Concealment and from what I heard, Texas is the place where this has been addressed by the courts. So far I haven't turned up a direct reference for it but basically if someone conceals something in order to obtain a gain or benefit it is Fraudulent Concealment.

The other thing that I was reminded of, and had not heard for maybe 15 years was the term "With clean hands". No party to a prosecution or claim in equity can succeed if they come to the matter with out clean hands. That means that they cannot conceal information or take action that detriments the other party because it means they are dishonest and the claim should be ejected.

Paraphrasing from memory. I'll be re listening over the next day or so, so am hoping I can add some more to that.