All pistols, shotguns, rifles, dirks, bowie knives, switchblade knives, ballistic knives, razors, slingshots, brass or metal knucks, blackjacks, stun weapons, and other weapons used by any person in the commission of a criminal offense, shall be forfeited to the Commonwealth by order of the court trying the case. The court shall dispose of such weapons as it deems proper by entry of an order of record. Such disposition may include the destruction of the weapons or, subject to any registration requirements of federal law, sale of the firearms to a licensed dealer in such firearms in accordance with the provisions of Chapter 22.1 (§ 19.2-386.1 et seq.) regarding sale of property forfeited to the Commonwealth. The court may authorize the seizing law-enforcement agency to use the weapon for a period of time as specified in the order. When the seizing agency ceases to so use the weapon, it shall be disposed of as otherwise provided in this section. However, upon petition to the court and notice to the attorney for the Commonwealth, the court, upon good cause shown, shall return any such weapon to its lawful owner after conclusion of all relevant proceedings if such owner (i) did not know and had no reason to know of the conduct giving rise to the forfeiture and (ii) is not otherwise prohibited by law from possessing the weapon. The owner shall acknowledge in a sworn affidavit to be filed with the record in the case or cases that he has retaken possession of the weapon involved.