Attacking and supporting credibility of declarant.

(1) When a hearsay statement has been admitted in evidence, credibility of the declarant may be attacked and, if attacked, may be supported by any evidence that would be admissible for those purposes if the declarant had testified as a witness. Evidence of a statement or conduct by the declarant at any time inconsistent with the declarant’s hearsay statement is admissible, regardless of whether or not the declarant has been afforded an opportunity to deny or explain it.

(2) If the party against whom a hearsay statement has been admitted calls the declarant as a witness, the party is entitled to examine the declarant on the statement as if under cross-examination.