At this point, the best that you can reasonably hope for is Barb being of sound mind and having consented to it. Even that seems unlikely, but you do have to remember that cops are the lowest of the low IQ idiots, you literally cannot be dumber than a cop without having a serious disability. There is a chance (albeit very small) that they simply want Chris to have committed rape and so are treating him like a rapist while trying anything they can to have Barb declared incompetent. But I definitely doubt it at this point. Unfortunately, it seems as though Chris might just be a rapist.