Method for detecting fingerprints using a laser and an apparatus therefor

摘要: In one aspect of the invention, sample surface is wetted with an aqueous solution a fluorescent dye followed by rinses water to remove excessive amount so that background fluorescence emission can be minimized increase efficiency fingerprint detection. another aspect, or reagent produce substance deposited on attaching gelatinous film impregnated thereof peeling. further different powdery spraying wash away minimized. The invention also provides apparatus for detection laser beam excitation fluorescence, which compact and portable as being composed ingenious combination several units into integral system.