How can a person be charged and go to trial without an indictment?

A person can be charged and go to trial without an indictment through a process called "information," which involves the prosecutor filing formal charges directly with the court. This is often used in misdemeanor cases or when the defendant waives their right to an indictment. Additionally, in some jurisdictions, a preliminary hearing can serve to determine whether there is enough evidence to proceed to trial without an indictment. In these cases, the legal system allows for prosecution based on sufficient evidence presented by the prosecution.