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This powder is copper-colored and leaves an orange stain.
Visible Theft Detection Powder is applied to a surface such as a doorknob or a valuable object. It is applied lightly with a brush. When your thief touches the object, the powder reacts with the natural moisture on the hand, causing it to turn a brilliant color. This difficult to remove stain easily identifies your thief. Choose from many color options. Pick a powder color to match the surface where it will be applied. Powders start as one color and once activated by human perspiration or moisture, they stain as another color. An example is copper colored powder that turns orange after being touched.