4.—(1) The Lord Advocate may give a notice under this article to the Lord Justice Clerk where it appears to him that both of the accused are present in the Netherlands.
(2) On receipt of a notice given by the Lord Advocate under paragraph (1) above the Lord Justice Clerk shall forthwith direct that, in respect of the proceedings against the accused and subject to articles 6 and 14 of this Order, the High Court of Justiciary shall sit in the Netherlands at the premises of the court.
(3) Without prejudice to paragraph (4) below, a notice given or a direction made under this article shall not be called in question otherwise than in the proceedings for which a court shall have been constituted under article 5 of this Order.
(4) Where the Lord Advocate withdraws a notice under paragraph (1) above by a further notice to the Lord Justice Clerk, the Lord Justice Clerk shall withdraw any direction he has made.
(5) Anything which the Lord Justice General requires, or has power, to do in relation to criminal proceedings shall, in relation to proceedings conducted by virtue of this Order, be done by the Lord Justice Clerk.