Nolo's Plain-English Law Dictionary

Grand Jury

A group of people chosen at random that sits on a regular basis to hear evidence brought by a prosecutor. The prosecutor presents evidence against a person that he or she thinks will justify an indictment (formal charges) and a trial. Grand juries, unlike petit juries, meet in secret, need not reach unanimous decisions, and do not decide on a person's guilt or evidence (they only decide whether the person should stand trial). (See also: petit jury)
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