Where an appeal emanates from a judgment of a magistrate grade II, and either the accused person or the Director of Public Prosecutions has appealed to the chief magistrate, and from there to the High Court, either the accused or the Director of Public Prosecutions may lodge a third and final appeal to the Court of Appeal with the certificate of the High Court that the matter raises a question of law of great public or general importance or if the Court of Appeal in its overall duty to see that justice is done, considers that the appeal should be heard; except that in such a third appeal by the Director of Public Prosecutions, the Court of Appeal shall only give a declaratory judgment.