In all cases, irrelevant, immaterial, or unduly repetitious evidence shall be excluded. The rules of evidence as applied in nonjury civil cases in the district courts of this state shall be followed. When necessary to ascertain facts not reasonably susceptible of proof under those rules, evidence not admissible thereunder may be admitted, except where precluded by statute, if it is of a type commonly relied upon by reasonably prudent men in the conduct of their affairs. The commission and agency shall give effect to the rules of privilege recognized by law. Objections to evidentiary offers may be made and shall be noted in the record. Subject to these requirements, if 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.

Source Note:The provisions of this §29.30 adopted to be effective January 1, 1976.