—Use of Deposition

So far as otherwise admissible under the rules of evidence, a deposition may be used as evi- dence at the trial or at any hearing if the deponent 409 is unavailable, as defined in Section 40-56. Any deposition may also be used by any party for the purpose of contradicting or impeaching the testi- mony of the deponent as a witness. If only a part of a deposition is offered in evidence by a party, an adverse party may require such party to offer, or may himself or herself offer, all of it which is relevant to the part offered. (P.B. 1978-1997, Sec. 793.)