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.You must complete your Juror Qualification Questionnaire, even if you are asking for an excusal or postponement. Questionnaire. Chat with the Jury Department. If you're made to fill out a comprehensive questionnaire, be truthful, be candid. If you have already attended a Jury Service this week, either in person or online, the information below does not apply to you. The Juror Experience. Hear from real Oakland County juror about their experiences. Jurors listen to the evidence, determine which facts are true, and decide whether the defendant is "guilty" or "not guilty." Recent charges of ethnic bias in picking death penalty juries have not only scandalized Alameda County prosecutors: They've put the entire system on trial.