Haw. Rev. Stat. § 624-24
An arbitrator or other person, other than a court, having authority to hear, receive and examine evidence, may order that the deposition of a witness be taken within the State, or by leave of a circuit court outside the State, for use as evidence in a pending civil matter, when the circumstances are such that it is probable that the witness will not be able to, or will not be compellable to, attend and give evidence before such person at the hearing. Except as otherwise provided, the deposition shall be taken and may be used in the same manner as is provided by the rules of court relating to depositions in civil actions in circuit courts.
Nothing herein contained limits or affects any other power heretofore or hereafter conferred with respect to the taking of depositions.
HRS § 624-24
Rules of Court
See Hawaii Arbitration Rules.