Grand Jury: A larger jury that determines whether there is enough evidence for an indictment (formal charge) to proceed with a criminal trial.
Petit Jury: Also known as a trial jury, it is the group of people selected to hear evidence and decide the verdict in a specific case.
Voir Dire: The process in which potential jurors are questioned by attorneys to determine if they have any biases or conflicts of interest that may affect their ability to serve on a jury.