Discovery is used to gather information from another party in your case. Learn how and when to use it.Each party is required to respond truthfully and completely to written and oral discovery requests. It can be tricky to navigate the vast Cook County court system. The Chicago litigation attorneys at Smoler Law can help. All Illinois Courts must accept these forms. The discovery process begins with an indepth interview. It provided for discovery of documents and tangible things, and for entry upon real estate, in the custody or control of any party or other person. Fill out the form: Fill out the form as bets you can. Illinois Legal Aid Online provides a guided interview called an Easy Form that will help you fill out the forms.