Hawaii Revised Statutes Division 1. Government § 281-21

[(a)] Any investigator, police officer, or other law enforcement officer may serve any subpoena issued by the liquor commission, liquor control adjudication board, or administrator.

[(b)] Every witness attending or testifying at any hearing of the commission or board in response to a subpoena issued by it or the administrator shall be paid as provided for in section 621-7. If a witness is subpoenaed by direction of the commission, board, or administrator, the witness' fees shall be paid out of any funds which may be set aside for the expenses of the commission or board and, if the witness is subpoenaed on behalf of any interested party, the witness' fees shall be paid by that party.