EVIDENCE Rule 806. Attacking and Supporting Credibility of Declarant
When a hearsay statement has been admitted in evidence, the credibility of the declarant may be attacked, and if attacked may be supported, by any evidence which would be admissible for those purposes if the declarant had testified as a witness. Evidence of a statement or other conduct by a declarant, inconsistent with the declarant's hearsay statement received in evidence, is admissible although declarant had no opportunity to deny or explain it. If the party against whom a hearsay statement has been admitted calls the declarant as a witness, that party is entitled to examine the declarant on the statement as if under cross-examination.