RULES OF THE SUPERIOR COURT OF THE STATE OF NEW HAMPSHIRE

    
    97. A defendant, who is represented by attorney, may enter a plea of not guilty without formal arraignment by filing at, or before, the time fixed for arraignment, a written statement signed by the defendant certifying that he has reviewed a copy of the indictment, has read it or had it read or explained to him, understands the substance of the charge, waives formal arraignment, and pleads not guilty to the charge. (See Appendix for form.)