law
In legal terms, it refers to a group of non-professionals who have been selected and sworn in to ask questions about the facts of the case and make a ruling based on the evidence. Modern jurors can ask questions about law and facts. But American federal jurors are usually limited to asking questions about facts. The number of modern juries depends on the procedure, but it is usually 6 or 12. According to American law, whether it is a federal grand jury or a small jury, it must be "a group randomly selected by fair crossover in the local courts". The Supreme Court of the United States has made a series of decisions on juries, stipulating that jury members must be "equal" people, and systematically excluded special classes (such as gender, race or ancestors) that would violate the provisions on equal protection rights and affect the rights of defendants in jury trials. The defendant has no right to choose jurors. See Grand Jury, Small Jury and Preparatory Jury.