Section 12-47-42 - Conduct of hearing and evidence(a) Testimony shall be taken on oath or affirmation.(b) Each party shall have the right to call and examine parties and witnesses, to introduce evidence, to question opposing witnesses and parties on any matter relevant to the issues even though that matter was not covered in direct examination, to impeach any witness regardless which party first called the witness to testify, and to offer rebuttal evidence.(c) Any member may question any party or witness.(d) The admission of evidence in a hearing shall be controlled by the presiding member in a manner in which the presiding member considers best suited to ascertain the just, speedy, and inexpensive determination of the proceedings.[Eff ] (Auth: HRS § 371-4) (Imp: HRS §§ 91-9, 91-10, 371-4)