A Hawaii Subpoena to Appear and Testify is a legal document issued by a court of law in the state of Hawaii. It requires an individual to appear in court at a specified time and date to give testimony in a legal proceeding. The subpoena may also require the individual to produce documents or other evidence relevant to the case. The subpoena is typically served to the individual by a sheriff, process server, or other authorized law enforcement officer. There are two types of Hawaii Subpoena to Appear and Testify: a Subpoena Ducks Cecum and a Subpoena Ad Testificandum. A Subpoena Ducks Cecum requires an individual to appear at a specified time and date and to produce documents or other evidence relevant to the case. A Subpoena Ad Testificandum requires an individual to appear at a specified time and date and to give testimony in a legal proceeding.