On the surface of the disc, leather and other rough object, with fingerprint powder brush to show the handprint, if the fingerprint tape stick, the extracted handprint will appear wire breaking phenomenon. Silicone rubber is a viscous substance that applies to the surface of the object, seeps into the lower recess, and glues the fingerprint powder at the lower recess and the protrusion. Silicone rubber solidifies and becomes an elastic solid, which is exposed from the surface of the object and a coherent pattern of hand prints can be seen.