I'd say the jury nullification has absolutely been successful and used many times. O.J. Simpson anyone? The man murdered two people and was found not guilty bec

I'd say the jury nullification has absolutely been successful and used many times. O.J. Simpson anyone? The man murdered two people and was found not guilty because the jurors wanted to send a message to the police. They didn't nullify based on a specific law, but it was government policy. That may have been one of the most atrocious miscarriages of justice in American jurisprudence.