Interrogatories are a helpful tool for discovery. Interrogatories are written questions which focus on any information relevant to the case.Interrogatories are a list of questions from one Party to the other. Interrogatories are written questions that either the defense or the plaintiff involved in litigation can send to the opposing attorney. Customer: this is a process question for interrogatories. Interrogatories are a discovery tool that the parties can use to have specific questions about a case answered before trial. □ Fill in the case information. Here are some sample interrogatory objections, a cheat sheet that might help you determine how to object to interrogatories. This packet provides general guidance about asking written questions, called "Interrogatories," to another party in the case. In general, Texas has very few official legal forms.