Haw. Rev. Stat. § 624-41
(a) A person who, before action, desires to perpetuate the person's own testimony or the testimony of any other person, may proceed in accordance with the rules of court or may bring a civil action in the circuit court of any circuit in which it is fair and equitable to the parties that the matter be heard, setting forth:
(5) The names and addresses of the persons to be examined and the substance of the testimony that the plaintiff expects to elicit from each; and
praying for an order authorizing the plaintiff to take the depositions of the persons to be examined named in the action, for the purpose of perpetuating their testimony.
[L 1876, c 32, §27; RL 1925, §2590; RL 1935, §3884; RL 1945, §9870; RL 1955, §223-23; HRS §624-41; am L 1972, c 143, §1(h); am L 2016, c 55, §24]
See HRCP rule 27.