Discovery is part of a lawsuit. It is a way for one party to find out information from the other party before the trial.Download and complete Motion and Notice forms from the Illinois Office of the Courts. 1. The full name and complete last known address of every witness to the occurrence complained of. (e) Sequence of Discovery. For information about defending yourself in a court case (including filing an appearance or fee waiver), or to apply for free legal help, go to. The purpose of discovery is to provide a clear picture of the full issues and facts related to your caseit reveals the truth. The parties are required to attach supporting documentation to the form.