Any party may serve written interrogatories upon any other party, subject to the limits of Rule 26(c)(5). A party may serve on any other party a request to admit the truth of any discoverable matter stated in the request, including the genuineness of any document.Discovery requests (interrogatories, requests for production, or requests for admission) and responses are not filed with the court at the time they are served. The court may require a jury to return only a special verdict in the form of a special written finding upon each issue of fact. Make the steps below to complete Discovery Interrogatories from Defendant to Plaintiff with Production Requests - Utah online quickly and easily. Method of Service and Due Date of Responses. If personally served, responses to interrogatories are due within thirty (30) days of service. Discover all the benefits of our editor right now! Fill out Discovery Interrogatories from Plaintiff to Defendant with Production Requests - Utah online For example, in the District Court, there is a maximum limit of 15 interrogatories, but the limit in Circuit Court is 30 interrogatories.