27.—(1) Where on a trial on indictment an accused is prevented from cross-examining a witness in person by virtue of Article 22, 23 or 24, the judge must give the jury (if there is one) such warning (if any) as the judge considers necessary to ensure that the accused is not prejudiced—
(a)by any inferences that might be drawn from the fact that the accused has been prevented from cross-examining the witness in person;
(b)where the witness has been cross-examined by a legal representative appointed under Article 26(4), by the fact that the cross-examination was carried out by such a legal representative and not by a person acting as the accused’s own legal representative.
(2) Paragraph (8)(a) of Article 26 applies for the purposes of this Article as it applies for the purposes of Article 26.