An Illinois Subpoena-General is a judicial order requiring a person or entity to appear in court or produce certain documents or records. It is a type of subpoena issued by the Circuit Court of the State of Illinois. There are two types of Illinois Subpoena-Generals: a Subpoena Ducks Cecum and a Subpoena Ad Testificandum. A Subpoena Ducks Cecum requires the recipient to produce documents or records for examination. A Subpoena Ad Testificandum requires the recipient to appear in court and give testimony.