Hawaii Summons on a Third-Party Complaint is a legal document issued by a court in the state of Hawaii. It is issued when a third party is named as a defendant in a civil case. The summons is a written notice to the third-party defendant informing them of the allegations made against them and ordering them to appear in court and answer the complaint. The types of summons that can be issued in Hawaii include a Summons in a Civil Case, Summons for Interpleader Proceedings, and Summons in an Unlawful Detained Action. The Summons must be served on the third-party defendant at least 20 days before the court hearing.