Interrogatories are a discovery tool (among many) used in lawsuits in New York courts. In sum, these are written questions seeking specific information.In many civil actions, before the case is resolved there takes place a process known as pretrial discovery. This summary describes the process. Fill out the remainder of the form if you are also request a Fee Deferral or Waiver. Service of interrogatories. We hope that you find this Handbook helpful, and that it provides some aid in protecting your rights behind bars. Rule 4 of the Federal Rules of Civil Procedure requires certain defendants to cooperate in saving unnecessary expenses of serving a summons and complaint. PART 1 - COMMON INTERROGATORIES. GENERAL. California Supreme Court Declined to Take Up CEQA Challenge to New Golden State.