The Ridley Report updates us as to the bill being proposed in NH that would allow the defendant or council to the defendant to inform the jury as to their right to vote their conscience.
Such a bill would allow defendants to base their defense on the public’s dislike of a law. – For instance if the legislator created a law that said all copies of End The Fed must be burned or owners would face 20 years in prison if they were caught with the book, defendants could argue before the jury that the law is unjust and they should be acquitted because the law is tyrannical and violates their rights.
Right now, juries can vote their conscience; however, defendants are prohibited from informing the jury about their right to do so.
See this article written by a law school professor for more information.