1. Where a statement is admitted as evidence in criminal proceedings by virtue of Part II—
(a)any evidence which, if the person making the statement had been called as a witness, would have been admissible as relevant to his credibility as a witness shall be admissible for that purpose in those proceedings;
(b)evidence may, with the leave of the court, be given of any matter which, if that person had been called as a witness, could have been put to him in cross-examination as relevant to his credibility as a witness but of which evidence could not have been adduced by the cross-examining party; and
(c)evidence tending to prove that that person, whether before or after making the statement, made (whether orally or not) some other statement which is inconsistent with it shall be admissible for the purpose of showing that he has contradicted himself.
2. A statement which is given in evidence by virtue of Part II shall not be capable of corroborating evidence given by the person making it.
3. In estimating the weight, if any, to be attached to such a statement regard shall be had to all the circumstances from which any inference can reasonably be drawn as to its accuracy or otherwise.
4. Without prejudice to the generality of any statutory provision conferring power to make them—
(a)Crown Court rules;
(b)rules of court;
(c)county court rules; and
(d)magistrates' courts rules,
may make such provision as appears to the authority making any of them to be necessary or expedient for the purposes of Part II.
5. Expressions used in Part II and in Part I of the Civil Evidence Act (Northern Ireland) 1971(1) are to be construed in Part II in accordance with section 6 of that Act.
6. In Part II “confession” includes any statement wholly or partly adverse to the person who made it, whether made to a person in authority or not and whether made in words or otherwise.