Va. Code § 9.1-1104
Upon the request of any person accused of a crime or upon the request of an accused person's attorney, the Department or the Division of Consolidated Laboratory Services shall furnish to the accused or his attorney the results of any investigation that has been conducted by it and that is related in any way to a crime for which the person is accused. In any case in which an attorney of record for a person accused of violation of any criminal law of the Commonwealth, or the accused, may desire a scientific investigation, he shall, by motion filed before the court in which the charge is pending, certify that in good faith he believes that a scientific investigation may be relevant to the criminal charge and that the Department or the Division of Consolidated Laboratory Services has indicated it has a methodology to perform the requested scientific investigation. The motion shall be heard ex parte as soon as practicable, and the court shall, after a hearing upon the motion and being satisfied as to the correctness of the certification, order that the same be performed by the Department or the Division of Consolidated Laboratory Services and shall prescribe in its order the method of custody, transfer, and return of evidence submitted for scientific investigation. Upon the request of the attorney for the Commonwealth of the jurisdiction in which the charge is pending, he shall be furnished the results of the scientific investigation.
Va. Code § 9.1-1104