A preliminary hearing is a legal process where the judge decides if there is enough evidence to send a defendant's charges to the Grand Jury. The judge, defendant, defendant's attorney, the prosecutor, and any necessary victims or witnesses are present at the proceeding. The prosecutor must prove to the judge that there is enough evidence to show that a crime has been committed. This involves putting on a minimal amount of evidence, in other words, enough evidence to justify further proceedings. If the prosecution establishes sufficient evidence, the case is certified to the Grand Jury.