33No member of the Judicial Committee shall sit and act as a member of the Judicial Committee in proceedings under this Schedule unless he holds or has held—
(a)the office of a Lord of Appeal in Ordinary, or
(b)high judicial office as defined in section 25 of the [1876 c. 59.] Appellate Jurisdiction Act 1876 (ignoring for this purpose section 5 of the [1887 c. 70.] Appellate Jurisdiction Act 1887).