Haha, totally going to get Nikola Tesla into this. While he himself is a vampire, he is trying to keep it a secret so he'll probably just show up as a vampire researcher.

You can put him on the jury or as a witness, since a)he knows Rose well, b)he was almost attacked by her and c)did I mention that he's researched vampires all his life? That being said, he'll totally be for the defense side, and don't be surprised if he acts all deadpan through the questioning.