Rule 4514. Impeachment of witness by prior inconsistent statement. In\naddition to impeachment in the manner permitted by common law, any party\nmay introduce proof that any witness has made a prior statement\ninconsistent with his testimony if the statement was made in a writing\nsubscribed by him or was made under oath.\n
Impeachment of witness by prior inconsistent statement
N.Y. Civil Practice Law & Rules Law § 4514, under Evidence.
N.Y. Civil Practice Law & Rules Law § 4514