Haw. Rev. Stat. § 651-3: Affidavit.

The writ of attachment shall be issued by the clerk of the court in which the action is pending. Before any writ of attachment shall issue, the plaintiff, or someone in the plaintiff's behalf, shall make and file with the clerk an affidavit showing that the defendant is indebted to the plaintiff, specifying the amount of the indebtedness over and above all just credits and offsets, and that the attachment is not sought and the action is not prosecuted to hinder, delay, or defraud any creditor of the defendant.