You're right, this is an interesting question even without brain transplants. Are you guilty of a crime committed under hypnosis? What if you have multiple pers

You're right, this is an interesting question even without brain transplants. Are you guilty of a crime committed under hypnosis? What if you have multiple personality disorder? What if that disorder is the somehow cured or mitigated, so there's no risk of the murderous personality coming up again? It's a gateway to a marsh of awkward questions.