"Currently, police robots simply destroy suspicious packages - along with any fingerprint evidence. RAFFE consists of a small box with a heating element, cartridge of Superglue and short pipe. Using remote controls, police direct the robot to the package and heat the Superglue in the box. The glue produces fumes that are piped towards the package. The fumes, containing cyanoacrylate, react with the oils and moisture in the fingerprints, turning them white. The fingerprints can then be photographed using the robot's high-definition camera prior to the safe disposal of the package."