A Missouri Subpoena is a legal document that is issued by a court of law in the state of Missouri. It is used to compel a person to appear as a witness in a court proceeding, or to produce documents, records, or other tangible objects. There are two types of Missouri Subpoena: a Subpoena Ducks Cecum and a Subpoena Ad Testificandum. A Subpoena Ducks Cecum is used to compel a person to produce tangible evidence such as documents, photographs, or other items. A Subpoena Ad Testificandum is used to compel a person to appear as a witness to give testimony.