56 Judges not to sit on appeal from their own judgments, etc.E+W
(1)No judge shall sit as a member of the civil division of the Court of Appeal on the hearing of, or shall determine any application in proceedings incidental or preliminary to, an appeal from a judgment or order made in any case by himself or by any court of which he was a member.
(2)No judge shall sit as a member of the criminal division of the Court of Appeal on the hearing of, or shall determine any application in proceedings incidental or preliminary to, an appeal against—
(a)a conviction before himself or a court of which he was a member; or
(b)a sentence passed by himself or such a court.