Register at the JPORTAL website and complete your juror questionnaire. You can sign up for text or email notifications or request an excusal or deferral.After these introductions, the judge and attorneys will question each of the potential jurors seated in the jury box. You will need the 10 digit candidate I.D. number from your summons as well as the zip code shown on its mailing address. You must complete a juror qualification questionnaire for determining whether you are qualified to serve as a juror pursuant to federal law. You must complete your Juror Qualification Questionnaire, even if you are asking for an excusal or postponement. Questionnaire. Chat with the Jury Department. It's a simple form on the back. See the United States Courts Jury Service webpage for information about serving on a federal jury. The Juror Experience.