Axe Cop will find out somehow, man. He just will. *insert witty bewaaaarrreee thing here*
Besides, like Bloble said, it's Forest's place, not theirs, come on. Lawful or not, they owe her at least that much respect. It's not so much of a law thing as it is a common decency thing. "Monster" or not (which I don't think Jack is really being in this case, but eh), they at least should show Forest the respect of keeping her kitchen intact.