An Illinois Trial Order is a court order that allows a plaintiff to obtain evidence and information from a defendant prior to the actual trial. The purpose of the order is to allow the plaintiff to determine if they have a viable case before filing a lawsuit. There are two types of Illinois Trial Orders: an Interrogatory Order and a Subpoena Order. An Interrogatory Order is used to obtain answers to written questions from a defendant, while a Subpoena Order is used to require a defendant to produce documents or other tangible items to the plaintiff. Both types of orders are issued by the court and must be served on the defendant in order to be legally effective.