In many civil actions, before the case is resolved there takes place a process known as pretrial discovery. This summary describes this process.This guide is intended to be a summary of basic discovery procedures. This summary describes the process. If there are multiple parties involved, send copies of the discovery materials and Notice of Service of Discovery Materials to every party. What is the Purpose of Discovery? The purpose of discovery is to provide parties the opportunity to gather evidence relevant to proving or defending the case. Fill in the top of the Discovery form the same way you filled in the top of your Answer form in Booklet 3. Read over your Answer. This is the formal process of exchanging information between the parties about the witnesses and evidence they ll present at trial.