Upon reporting for service jurors can expect to serve for the duration of one trial. Please call the toll-free automated jury information system at 1-866-851-8154 for up-to-date information on your request 5 days prior to your reporting date.In the Western Division jurors are given several different specific dates which may extend over a 2 month period. To be eligible for jury service, you must be a citizen of the United States; at least 18 years old; a resident of the county; not have a pending lawsuit. Where a person serves on a trial jury or grand jury for more than 10 days, that person is disqualified from further jury service for eight years. This handbook is written to help you understand your duties as a grand juror, with some practical suggestions to assist you in carrying out those duties. The Office of Jury Administration provides qualified jurors to the Circuit Court of Cook County. However, the court may not excuse a juror for an economic reason unless each party of record is present and approves the release. If you have any problems, call 309-672-6076. 2. After I have served, when am I qualified to serve again?