Credibility
51.Article 28 makes provision for challenges to the credibility of the maker of a hearsay statement who does not give oral evidence in person in the proceedings. If such a hearsay statement is admitted as evidence of a matter stated, this Article provides certain rights for the person against whom hearsay evidence has been admitted, to produce, in specified circumstances, evidence to discredit the maker of the statement or to show that he has contradicted himself.