03-13-2014, 06:02 PM
How about using a fingerprint card on somebody with help intent gives them a message "Publord is trying to take your fingerprints", and takes 15 seconds. If they move, you get a partial print. Anyone who picks up a blank fingerprint card without wearing gloves automatically prints the card with their own fingerprint. So the detective would need to wear his gloves, and get someone to sit still long enough to take their print.