An Illinois Subpoena is a legal document issued by a court or other legal entity in the state of Illinois for the purpose of compelling a witness to appear in court or produce documents or other evidence for a trial. It is also known as a “Summons to Appear” or “appearingAppear.” There are two types of Illinois Subpoena: Subpoena Ducks Cecum and Subpoena Ad Testificandum. Subpoena Ducks Cecum requires a witness to appear in court and produce documents or other tangible evidence relevant to the case. This type of subpoena is commonly used to compel the production of financial records, emails, photographs, and other documents. Subpoena Ad Testificandum requires a witness to appear in court and testify under oath. This type of subpoena is typically used to compel the attendance of a witness to give testimony or to produce documents or other tangible evidence. Both types of Illinois Subpoena are legally binding and must be served to the witness by an authorized party such as a sheriff, constable, or process server. If the witness fails to comply with the subpoena, they may be held in contempt of court.