SECTION 180:1-3-14. Evidentiary rules

(a)   Rules of evidence. At such hearings, the rules of evidence set forth in the Oklahoma Evidence Code shall apply and the hearing shall be conducted in accordance with the Oklahoma Evidence Code relating to hearings therein provided, insofar as may be practicable.

(b)   Order of proof. The applicant or complainant who institutes a proceeding shall open and close the proof. Intervenors shall be heard immediately following principal parties with whom allied in interest. In all other cases, the presiding officer shall designate the order of proof.

(c)   Adverse party. A party may call an adverse party or an officer or employee of an adverse party, in which case the witness may be impeached and otherwise cross-examined.

(d)   Off the record. All testimony will be taken on the record unless the presiding officer designates otherwise.

(e)   Documents. Documentary evidence may be received in the form of copies or excerpts, if the original is not readily available. Upon requests, parties shall be given an opportunity to compare the copy with the original.

(f)   Examination of witness. The Commissioner shall designate the order of examination and may limit the scope of examination and cross-examination.