9Notwithstanding the expiry of any period for which a person is appointed under the said section 35(3) to act as a judge—
(a)he may attend at the Court of Session or the High Court of Justiciary for the purpose of continuing to deal with, giving judgment in, or dealing with any matter relating to, any case begun before him while acting as a judge of either Court; and
(b)for that purpose, and for the purpose of any proceedings arising out of any such case or matter, he shall be treated as being or, as the case may be, having been, a judge of the relevant Court.