(b) If the respondent notifies the commissioner within five days before the hearing provided for in (a) of this section, the following rules and procedures apply to the hearing:
- (1) the hearing shall be a nonadversary proceeding, with the hearing officer fully and impartially representing the interests of the state and the respondent;
- (2) the hearing officer shall thoroughly investigate the facts and circumstances relating to the alleged violation, including taking testimony from appropriate persons, collecting and examining documents and other evidence, and performing other actions consistent with due process of law; and
- (3) the hearing officer shall issue a decision in accordance with the applicable procedures of (a) of this section.