Parties may obtain discovery regarding any matter, not privileged, which is relevant to the subject matter involved in the pending action. The notice must state the time and place of the deposition and, if known, the deponent's name and address.How to Use Discovery. Fill out the form in this booklet. In many civil actions, before the case is resolved there takes place a process known as pretrial discovery. This summary describes this process. This document is a notice of discovery and inspection from plaintiff KCM Realty Company to defendant New Ram Realty. CPLR 3120: Discovery and production of documents and things for inspection, testing, copying or photographing. To commence the process in Massachusetts courts, the party needing the discovery uses the process of securing what is called a letter rogatory. 1 New York Civil Practice Aet, see.