http://www.courts.state.va.us/courts/circuit/circuitinfo.pdf
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If probable cause is found, the case is certified (sent) to the grand jury. If the grand jury also finds probable cause and returns an indictment, the accused is held for trial in circuit court. Following indictment, the accused is arraigned; that is, the charges are read and he enters a plea of guilty, not guilty, or nolo contendere (no contest). In misdemeanor cases appealed from district court, the preliminary hearing, the grand jury indictment, and arraignment are not necessary. Also, when an accused is first charged by grand jury indictment, no preliminary hearing is required and, after arrest, the accused is arraigned.