In this article, our DuPage civil defense attorneys explain the written discovery phase of litigation, including interrogatories, requests for production of documents, and requests for admission of facts. We explain common objections to requests for information, and how such objections are resolved through Illinois Rule 201(k) letters and motions to compel responses to discovery requests. Our DuPage defense lawyers also explain the purpose of written discovery and how it can be used as a tool to prepare for deposition and trial.