1. Irrelevant, immaterial or unduly repetitious evidence must be excluded from a proceeding. Evidence may be admitted if it is of the type commonly relied upon by reasonable, prudent persons in the conduct of their affairs.
2. The laws of this state relating to privilege must be observed in all proceedings.
3. Objections to evidentiary matters may be made and must be noted in the record of a proceeding.
4. Evidence may be received in written form if it will result in an expedited proceeding and will not substantially prejudice a party.