Illinois Summons (30 Days) is a legal document issued by a court, which orders a defendant to appear in court and answer a complaint. It is used in civil matters pending in the state of Illinois. There are two types of Illinois Summons (30 Days): the standard and the alternative. The standard summons is issued by the court to the defendant, and must be served either by the sheriff or by certified mail. The alternative summons is sent to the defendant by the plaintiff, and must be signed by the defendant within 30 days. Failure to respond to the summons can result in a default judgment being entered against the defendant.