"In a case where the Crown was contending that the applicant's plea of guilty at the lower court was conclusive evidence of his guilt, including the challenged issue of his state of mind, it was the judge's obligation to give the jury directions, carrying with them the full authority of his office, as to how they should approach such a significant issue. Like in every other case where an alleged confession of guilt has been challenged, his Honour, in my view, was bound to instruct the jury in the circumstances that, before they could use the evidence of the guilty plea as conclusive evidence of the applicant's guilt, they had to be satisfied beyond a reasonable doubt that such a plea was, and was intended to be, a true acknowledgment of the applicant's guilt of the crime charged; and that if, having regard to the evidence, they concluded that it was possible that he had entered the plea, not because of a belief in his guilt, but because he believed that he would receive a suspended or more lenient sentence, then they should discard the plea of guilty from their consideration."