Haw. Rev. Stat. § 231-14: Attorney.

The attorney general shall assign one of the attorney general's deputies as attorney and legal advisor and representative of the director of taxation. The attorney may proceed to enforce payment of any delinquent taxes by any means provided by law. Any legal proceeding may be instituted in the name of the director or the director's deputy, the collector of the district in which the delinquency exists, or in the name of the collector of delinquent taxes.