Form Interrogatories are a list of questions on a court form. First, a summons and complaint must be served within 90 days of filing rather than 120 days.It helps if you fill in the top part of the form with the case and court information. You can use it during trial to help you present your case to the judge, so it is important that you fill it out as thoroughly as possible. Follow the instructions on Form 16B to fill out the Affidavit of Service. We hope that you find this Handbook helpful, and that it provides some aid in protecting your rights behind bars. Step-by-Step Instructions. If you are interested in working together to create sustainable solutions, please fill out the renewable natural gas information form. Do my interrogatories need to be in a particular format?