Section 5-16 - Right to Appear at Hearing; Public Comment (a) Only parties may appear before the hearing officer at a hearing. Whether for himself or in a representative capacity, any individual may testify provided that he is called by a party or by the hearing officer. (b) The hearing officer, in his discretion, may permit persons in attendance at the hearing to present oral comments at the conclusion of the hearing. The Commissioner and the parties may ask questions of any person who presents oral comments at the hearing. 021-5 Wyo. Code R. § 5-16