Haw. Rev. Stat. § 25-4: Penalty for violation and false evidence.

Any person who, having been summoned under section 25-3 to give testimony or to produce any books, records, files, papers, maps and documents, wilfully makes default, or who, having appeared, refuses to answer any questions or wilfully gives false evidence shall be fined not more than $1,000, or imprisoned not more than twelve months, or both.