This Handbook is intended to answer some of the most common questions you may have. Most commonly asked questions regarding jurors, jury service, and eJuror at the United States District Court for the District of Massachusetts.The jury selection process in Massachusetts is a critical aspect of the legal system. It aims to ensure that each trial has a fair and impartial jury. The automated jury information line for the US District Court for the District of Massachusetts is 1-800-882-1249. This website will help you respond to your summons for juror service, and will also allow you to make changes or request assistance. A trial jury is composed of either 12 jurors plus 2 alternates or 6 jurors plus 1 alternate. You get to hear a judge explain the law. Not the law as you think it probably should be, but as it actually is. We'd leave our phones in the jury room though but we could use them on breaks.