Trials take place in a courtroom in front of a judge and without a jury. Once you find the correct court, go to the register's office and fill out a complaint and other required forms to start the case.At the end of the trial, the judge will decide who will get custody and what other terms will go in the custody order. You have been summoned for service as a trial juror in the Commonwealth of Massachusetts. There's no Federal constitutional right to a jury trial in family law cases. Jurors are picked at random and randomly assigned to court houses within the county in which they reside. You MUST complete the online juror questionnaire and request to be excused. Most courts in MA don't have restrictions on Cell phones but none that I know of have restrictions on books. Upvote No. Juries are not involved in family law cases such as divorce, parenting time, custody, support, etc. Jury Information Line.