I'm only following a few x-books right now so I don't know if this question is answered anywhere. In HOX/POX it was established that any mutant will be given a blank slate when they become a citizen of Krakoa. Shaw, Sinister, Selene, Apoc, etc. were all accepted and their past crimes were forgotten. So let's say Red Skull suddenly became a mutant. He had some mutant blood lying around from his Red Onslaught days and Sinister cloned him as a mutant because why not. Would it be his right to become a citizen of Krakoa and cleansed from all of his past sins in the eyes of the mutant nation? And if the world wanted him to stand trial for his crimes, would Krakoa let them unlike the case with Sabretooth?