When the defendant shall have completed satisfactorily the program prescribed and complied with its conditions, the defendant may move the court for an order dismissing the charges. This motion shall be supported by affidavit of the defendant and by certification of the agency or person charged with supervising the defendant’s program, if any. A copy of the motion shall be served on the attorney for the Commonwealth who shall within 30 days after service advise the judge of any objections to the motion, serving a copy of such objections on the defendant or the defendant’s attorney. If there are no objections filed within the 30-day period, the judge shall thereafter dismiss the charges against the defendant. If there are objections filed with regard to the dismissal of charges, the judge shall proceed as set forth in Rule 318.