Haw. Rev. Stat. § 11-403: Notice of complaint; opportunity to explain or respond to complaint; failure to explain or respond to complaint.

(a) The commission shall give notice of receipt of the complaint and a copy of the complaint to the respondent.

(b) The respondent may explain or otherwise respond in writing to the complaint and explain or otherwise respond to the complaint at a meeting promptly noticed by the commission and conducted under chapter 92.

(c) If the respondent fails to explain or otherwise respond to the complaint, the commission may treat the failure to explain or respond as a rebuttable presumption that a violation has occurred. The respondent shall have thirty days from the mailing of the complaint under subsection (a) to explain or otherwise respond to the complaint before the rebuttable presumption takes effect.