he courts want to make jury service as manageable as possible for you while still ensuring the availability of jurors for jury trials. One way of doing this is the "one-day or one-trial" system. It works like this: you are summoned and appear at the courthouse at the designated time. If you are not selected for a jury that day, you are excused and have satisfied your obligation for at least a year. If you are selected for a jury, service in that trial satisfies your obligation for at least a year.