A jury is a group of people selected to listen to evidence in a legal case and make a decision based on that evidence. Juries are commonly used in criminal and civil trials, where they help ensure that the legal process is fair and impartial. Members of a jury are usually chosen from the community and must follow specific rules and procedures during the trial. The size of a jury can vary, but in many places, a standard jury consists of twelve members. After hearing the case, the jury deliberates in private to reach a verdict, which is then presented to the court. This process helps uphold the principle of justice by involving ordinary citizens in the legal system.