See the Request for Postponement section below if you cannot serve for at least 10 days following your scheduled summons date. The jury cannot be discharged after the cause is submitted to them until they have agreed upon their verdict and rendered it in open court.How often must I serve? In the County of San Bernardino, once a person has served as a juror, they are exempt from further jury service for 12 months. What are the grounds for requesting an excuse from service? This chapter applies to the selection of jurors, and the formation of trial juries, for both civil and criminal cases, in all trial courts of the state. By law, all grand jurors are required to complete a financial disclosure form (Form 700, Statement of Economic Interest). Paper Complaint Forms are available outside Room 318-1 in the County Government Center, 701 Ocean Street, Santa Cruz, CA 95060. Be serving as a trial juror in any California court. Criminal investigations are a smaller part of the Grand Jury's work in California.