BILSON v. APALOO Judges—Bias—Objection to panel—Two judges sitting as members of a panel of Supreme Court on grounds of necessity—Whether the two judges who sat on case at Court of Appeal could sit on panel of Supreme Court when the same case is being sought to be quashed on appeal—Whether natural justice rule against judicial bias must yield to doctrine of necessity—Exceptions to rule against judicial bias—Constitution, 1979, art. 115 (2).