The Statement of Discovery Issues cannot be more than 4 pages long. You complete a Certificate of Service or Proof of Service form that describes how and when you served the papers.Certificate of service. Divorce discovery involves gathering information to prepare for your trial. Find out how it works and what to do here. You would fill out the forms and mail them to your spouse, as with any other court document. I just filed initial disclosures in Utah regarding divorce, custody. On the form it says discovery due in Jan? They will need to fill out an affidavit of service, certifying when and what date, how, and to whom they served the papers. In discovery in divorce, a spouse learns what is included in the marital estate, financial assets, and liabilities of the other spouse.