Exposing high-end poker cheating devices
This is pretty silly. No casinos or card rooms let you have a phone/device at the table.<p>That aside, you need to have a special marked deck. People have tried something similar with flourescent ink and special glasses. I think professional shuffling devices have some kind of built in blacklight check now for this. IR is a bit better since its harder to detect without a camera. You would still need to have a tub of ink and manually mark the cards though.<p>You'd basically need to have the dealer in on it, and if that is the case you don't really need the device at all.<p>A more interesting method from a few decades ago that actually worked was "edge sorting". Because of printing/cutting one could determine certain cards. <a href="http://deadspin.com/how-phil-ivey-beat-or-maybe-cheated-a-casino-for-mill-1562993963" rel="nofollow">http://deadspin.com/how-phil-ivey-beat-or-maybe-cheated-a-ca...</a>