At the commencement of the public hearing the commission shall read the notice of hearing and shall then briefly prescribe the procedure to be followed at the public hearing. All witnesses testifying at the public hearing shall state their name, address, and who, if anyone, the witness represents. Every witness shall be subject to questioning by the commission or by any other representative of the commission. Questioning of witnesses by other persons shall not be permitted except when the commission expressly permits that questioning.
Haw. Code R. § 3-161-87