Get a comprehensive understanding of the process of discovery in a divorce. Learn the techniques to gather evidence and reach a resolution.Notices of service and answer of discovery are required to be filed in an Illinois divorce. The discovery process is the investigation phase that follows the filing of divorce or allocation of parental responsibilities. How do you tell if someone has complied with discovery in an Illinois divorce? How do you make the discovery process finally stop? The discovery process in a divorce is an exchange of financial and other important information. In any divorce, spouses must divide property between them. Download and complete Divorce, Child Support, and Maintenance forms from the Illinois Office of the Courts. This must happen within 120 days of the defendant filing their answer.