Section 4-5-303 - Separation of functions(a) A person who has served as an investigator, prosecutor or advocate in a contested case may not serve as an administrative judge or hearing officer or assist or advise an administrative judge or hearing officer in the same proceeding.(b) A person who is subject to the authority, direction or discretion of one who has served as investigator, prosecutor or advocate in a contested case may not serve as an administrative judge or hearing officer or assist or advise an administrative judge or hearing officer in the same proceeding.(c) A person who has participated in a determination of probable cause or other equivalent preliminary determination in a contested case may not serve as an administrative judge or hearing officer or assist or advise an administrative judge or hearing officer in the same proceeding.(d) A person may serve as an administrative judge or hearing officer at successive stages of the same contested case, unless a party demonstrates grounds for disqualification in accordance with § 4-5-302.(e) A person who has participated in a determination of probable cause or other equivalent preliminary determination or participated in or made a decision that is on administrative appeal in a contested case may serve as an agency member in the contested case where authorized by law and not subject to disqualification or other cause provided in this chapter.Acts 1982, ch. 874, § 39.