Ultraviolet Thief Detection Powder is designed for thief detection and the identification of stolen or altered items. For example, an article can be marked so that it is invisible to the eye, but under ultraviolet light the item and anyone who touched it can be identified. Powder, once touched, remains on fingers and hands, invisible except under UV light. Tampering, theft, etc., can be revealed as well as evidence against a suspect provided. For use with the Ultraviolet LED Flashlight.