Okla. Stat. tit. 75, § 75-310: Procedures before agency

In individual proceedings:

1. Agencies may admit and give probative effect to evidence

which possesses probative value commonly accepted by reasonably

prudent persons in the conduct of their affairs. They shall give

effect to the rules of privilege recognized by law in respect to:

self-incrimination; confidential communications between husband and

wife during the subsistence of the marriage relation; communication

between attorney and client, made in that relation; confessions made

to a clergyman or priest in his or her professional capacity in the

course of discipline enjoined by the church to which he or she

belongs; communications made by a patient to a licensed practitioner

of one of the healing arts with reference to any physical or

supposed physical disease or of knowledge gained by a practitioner

through a physical examination of a patient made in a professional

capacity; records and files of any official or agency of any state

or of the United States which, by any statute of a state or of the

United States are made confidential and privileged. No greater

exclusionary effect shall be given any such rule or privilege than

would obtain in an action in court. Agencies may exclude

incompetent, irrelevant, immaterial, and unduly repetitious

evidence. Objections to evidentiary offers may be made and shall be

noted in the record. Subject to these requirements, when a hearing

will be expedited and the interests of the parties will not be

prejudiced substantially, any part of the evidence may be received

in written form;

2. Documentary evidence may be received in the form of copies

or excerpts, if the original is not readily available. Upon

request, parties shall be given an opportunity to compare the copy

with the original;

3. A party may conduct cross-examinations required for a full

and true disclosure of the facts;

4. Notice may be taken of judicially cognizable facts. In

addition, notice may be taken of generally recognized technical or

scientific facts within the agency's specialized knowledge. Parties

shall be notified either before or during the hearing, or by

reference in preliminary reports or otherwise, of the material

noticed, including any staff memoranda or data, and they shall be

afforded an opportunity to contest the material so noticed. The

agency's experience, technical competence, and specialized knowledge

may be utilized in the evaluation of the evidence.

5. Any party shall at all times have the right to counsel,

provided that such counsel must be duly licensed to practice law by

the Supreme Court of Oklahoma, and provided further that counsel

shall have the right to appear and act for and on behalf of the

party represented.

6. A party may request the exclusion of witnesses to the

extent and for the purposes stated in Section 2615 of Title 12 of

the Oklahoma Statutes. Exclusion of a witness shall not be a

violation of the Oklahoma Open Meeting Act.