Our Invisible Thief Detection Spray, a high quality emulsion of our Invisible Thief Detection Powder and a liquid agent, is specially formulated for easy application on any surface background regardless of color. This spray can be applied to paper, cardboard, floors, doorknobs, drawer handles, cash boxes, paper money, lockers or any article subject to tampering or theft. When a suspect steals an article on which the spray is applied, highly fluorescent invisible specks and smears will be found on the hands, trousers, pockets, etc. when exposed to a long wave UV lamp. The fluorescent marks remain on the subject's hands for days. Supplied in a four or eight ounce spray bottle.