The Illinois Subpoena For a Foreign action Cover Sheet is a document used in the state of Illinois that must accompany a subpoena when served in a foreign action. It is an official form completed by the clerk of court or the party issuing the subpoena. The form includes the name of the person or company being served, the action in which the subpoena was issued for, the title of the document being served, and the caption of the action. The form also includes the county in which the foreign action is taking place, as well as the name and address of the attorney or party issuing the subpoena. There are two types of Illinois Subpoena For a Foreign action Cover Sheet: the Subpoena Ducks Cecum and the Subpoena Ad Testificandum. The Subpoena Ducks Cecum is used to compel the production of documents, records or other tangible evidence. The Subpoena Ad Testificandum is used to compel the appearance of a witness at a hearing or trial. Both types of cover sheet must be properly completed and filed with the clerk of court in order for the subpoena to be valid.