What role does a grand jury play in the legal system?

A grand jury plays a critical role in the legal system by deciding whether there is sufficient evidence to bring criminal charges against a person. This process involves reviewing evidence presented by the prosecution and determining if there is probable cause to formally accuse someone of a crime, which allows for the filing of charges.

In this capacity, the grand jury does not determine guilt or innocence, as that is the role of a trial jury. Additionally, it is not involved in the trial phase where evidence is presented and the defendant's case is argued. The grand jury's focus is solely on the pre-trial stage to decide if there is enough basis for indictment. Furthermore, providing legal advice is not within its purview; grand juries act as fact-finders and protectors of the accused by ensuring that only those cases with sufficient evidence proceed to trial.