Illinois Appearance and Jury Demand is a legal document that is filed by a plaintiff to begin a civil lawsuit in the state of Illinois. It is a formal request for a defendant to appear in court and answer the plaintiff's complaint. It also includes a demand for a jury trial. There are two types of Illinois Appearance and Jury Demand: voluntary and involuntary. A voluntary Appearance and Jury Demand is filed when the defendant agrees to appear in court and answer the plaintiff's complaint. An involuntary Appearance and Jury Demand is filed when the defendant does not agree to appear in court and answer the complaint. Both types of Appearance and Jury Demand must be served on the defendant in accordance with Illinois law.