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The Tech Used to Catch Vegas Cheats

Black Jack writes "Interesting piece on silicon.com about the technology used in Vegas for catching the cheats. It goes into detail on a number of things from facial recognition and RFID to some CIA-developed systems for background checking staff. Surprised they're so open about what they do! ...or is this just the stuff they admit to?"

25 of 321 comments (clear)

  1. Not giving much away by It+doesn't+come+easy · · Score: 4, Insightful

    Surprised they're so open about what they do!

    It's one thing to say you do something, it's an entirely different thing to say how you do it. For example, saying that you have an RFID chip in every casino chip is one thing. Having a monitoring system that can quickly and automatically identify a RFID position and movement anomaly among millions of active casino chips is something else.

    --
    The NSA: The only part of the US government that actually listens.
    1. Re:Not giving much away by MBCook · · Score: 4, Insightful

      One of the major points of the RFID in the chip is that when a chip is played in a slot machine or some such, they can check if there is a chip there and if it's valid. If it's not, the machine can automatically alert the casio at that moment that there is someone using fraudulent chips and arest the person. Same could be done on a table when the dealer collects chips. It's not neccessisarily about finding out who is doing what when and their patters (although they want that), it's about finding fraud faster.

      --
      Comment forecast: Bits of genius surrounded by a sea of mediocrity.
    2. Re:Not giving much away by AuMatar · · Score: 5, Insightful

      THe id in an RFID would have to match the database, and known not to be in play (if the same id is supposed to be in slot machine 3 and 5, one is a fake).

      Its not about making it impossible, its about making it extremely hard.

      --
      I still have more fans than freaks. WTF is wrong with you people?
    3. Re:Not giving much away by Darth · · Score: 4, Insightful

      you wait and collect information.
      Bob at machine 3 played a chip with the same id as Ted at machine 5.
      Bob at machine 3 played a chip with the same id as Kim at machine 9.
      Bob at machine 3 played a chip with the same id as Joe at machine 43.

      I wonder who has the counterfeit chips.

      A better scam would be to counterfeit enough chips for a bucket and then switch an innocent person's bucket for one full of counterfeits.

      --
      Darth --
      Nil Mortifi, Sine Lucre
  2. Making Your Own Tokens by MBCook · · Score: 5, Interesting
    There was a special about a month ago on Discover or one of those channels about this guy who made his own tokens for use in casinos and how he went about doing it, including having to figure out the right metal combinations, making the dies, getting giant press machines to form them, and everything. It was facinating. The way they finally caught him was the counts of tokens would come out high (they should have 100 $50 tokens at the end of the day, they'd have 120). Then from that they were able to go find him (eventually spotted him using them in a slot machine, and when the machine didn't like a token he put in, he just kept going where anyone else would complain LOUDLY about it).

    Facinating to watch.

    --
    Comment forecast: Bits of genius surrounded by a sea of mediocrity.
    1. Re:Making Your Own Tokens by Gogo+Dodo · · Score: 4, Informative

      It was the History Channel. Breaking Vegas, Counterfeit King episode.

  3. 'cheat' is realative by prgrmr · · Score: 5, Informative

    Catching an employee in the counting room taking his work home with him or a crooked dealer is all well and good, but card counting and varying your bet amount isn't cheating, it's playing shrewdly within the rules. This is where the casinos, IMO, are going over the top with the spying.

    1. Re:'cheat' is realative by dr_dank · · Score: 4, Informative

      Pretty much anything that doesn't make you a loser and part you efficiently from your money is verboten. If they allowed people to win too much, they'd be out of business next week.

      While card counting and strategies like it (by natural means, not counting using a computer or some such gimmick) isn't cheating, they are well within your rights to refuse to offer you a particular game or bar you completely from the premises. Most casinos share this info with each other since it is all within each others best interests to keep these people out, and before long, a cardcounter is persona non grata pretty much everywhere on the strip.

      Check out Bringing Down the House by Ben Mezrich.

      --
      Where does the school board find them and why do they keep sending them to ME?
    2. Re:'cheat' is realative by JustAnotherReader · · Score: 5, Informative
      Absolutly true. Consider this:

      If a game is not a game of chance, but a game of skill, then the law does not allow casinos to host that game. So on one hand, casinos want to ban card counters, but on the other hand they don't want to admit that skillfull players can play better than players relying purly on luck. Blackjack brings in a LOT of money for casinos. They want to keep that money stream coming.

  4. They want people to know - deterrent value by jratcliffe · · Score: 5, Insightful

    While the casinos might not want to let every detail out, they certainly want people to know if they have impressive anti-cheating capabilities. The casinos would prefer you didn't do X in the first place than catch you doing X, and if you're aware that they can catch you doing X, they've solved a lot of their problem right there...

  5. Internet Casinos by Eightyford · · Score: 5, Interesting

    I'd like to know what kind of technology is used to catch cheaters on internet Casinos. Sites like Pokerstars must have some pretty complex systems in place to catch cheaters, as it seems so easy to cheat at first sight. I mean, how hard would it be to have your friends play at the same table as you while on a conference call with them? Maybe I'll try that right now actually...

    1. Re:Internet Casinos by Skeezix · · Score: 4, Interesting
      It's not really known how often collusion takes place on internet poker sites. Most reputable sites at least claim to monitor playing habits and look for patterns that might indicate cheating. But who really knows how often they catch people. It certainly seems like it would be in their best interest to catch cheaters. Although stricting speaking the cheats don't steal money from them since they still get a rake of every pot, if a site has a bad reputation players will be less likely to use their site and switch to a more reliable one.

      They can monitor to see how often specific players play at the same table and observe the betting patterns of those players. One technique colluders will use is to gang up against a player who is going all in to increase the odds that player will lose the hand. If player X pushes all his chips in with pocket aces and 3 colluding players call with decent hands there is a good chance the aces will not hold up and one of the colluders will win the pot.

      There have also been accusations of poker sites doing the cheating. By altering the odds, they can generate bigger pots and therefore bigger rakes. Take a simple example. Deal one player pocket aces and another player pocket kings. Both players are likely to push a lot of chips with those hands and make a big pot. Drop a king on the flop to give one player a set and you're really going to see sparks. The bigger the pot, the higher the rake the house gets. I'm not saying this actually occurs at most poker sites, but it's an interesting thought experiment.

  6. Card Counting is NOT Cheating!!!! by riptide_dot · · Score: 5, Informative

    FTA:

    On a behavioural level such intelligence could also flag up 'one to watch' - for example a player laying $5 bets while sitting with $100,000 of chips in his or her pocket. This is certainly no cause for concern in its own right but such behaviour would in the past have caught notorious card counters waiting for the odds to fall in their favour or getting their eye in and honing a system.

    While I will agree with the casinos' rights as a business to ask ANYONE to leave their casino for whatever reason, I just want to point out to everyone that card counting is NOT cheating and that people who in engage in card counting are simply using the casino rules and game's strategy to their best advantage. Both Las Vegas and Reno gambling laws state that cheating is defined as manipulating the rules of the game, or using devices to get around the rules of the game, not using the rules to your advantage, thus card counting is not illegal according to Nevada state laws (and many, if not all other state laws as well).

    --
    I was in the park the other day wondering why frisbees get bigger and bigger the closer they get - and then it hit me.
  7. Maybe they show you on purpose. by GecKo213 · · Score: 5, Insightful
    Surprised they're so open about what they do!

    It shoudln't suprise you. It's the same reason the police officers drive around in very obvioulsy marked cars while on patrol. (Except for undercover cars of course, but they are doing a different type of work) While driving for instance, when you see a policeman pull up behind your car the first thing that comes to my mind at least is some form of "am I doing anything wrong at this point in time?" and that's kind of the effect they're after. They want you to know they are there and patroling hopefully keeping you from doing something you shouldn't because you just saw a cop.

    I think the same thing goes for a Casino owner. The more that you know about the measures they are using to keep you away, the more likely you are not to try to cheat in the first place. There is also a show on TV currently on Court TV called The Takedown. It's a team of prior casino cheats and thieves that are now hired to go and test the security in casinos by beating them at their game. Interesting show, even more interesting concepts.

    --
    Generation Trance: What generation are you?
  8. Re:Awesome by CyricZ · · Score: 5, Insightful

    Now how about catching some of the cheaters in my engineering classes?

    Don't worry. They'll be caught in the real world when the buildings they design collapse, or the machine they design breaks apart and kills someone, or when they can't design a functioning 4-bit comparator.

    --
    Cyric Zndovzny at your service.
  9. Re:scare off the wanna be's by Haydn+Fenton · · Score: 4, Insightful

    Funny, every time I watch a show on "hey, look at how these criminals did x, and look at how were so smart that we still busted them!" I think to myself.. well, you've given us all the info on how the criminals used to do it, and told us that it still works on a large number of cases, and now you've told us how you catch people, so we can avoid doing that in future. Although I can never be bothered to get into the business of it all, mainly cos it costs a fair bit (or you need to know people) to get started and I'm lazy and don't have the money. But I'm sure for every TV show on how to bust people, you simply introduce a whole number of new crooks to the game, with bigger and better ideas.

  10. Their house, their rules by jfengel · · Score: 4, Insightful

    Basically, they get to throw you out if they catch you counting because it's a private establishment. They can throw you out if they don't like the color of your shirt.

    Honestly, I agree with you: it's dumb to throw out players just because they can play better than you allow yourself to. (The percentage comes mostly from the fact that the dealer must hit on 16 and soft 17 no matter what the count looks like. A smart dealer would have a huge advantage, with the player having a chance to bust first, but they don't want to make it a skill vs. skill contest.)

    In Atlantic City, it's actually getting harder to find a straight 21 game. They have a lot of variants of it, and although I haven't done the math I bet they eliminate your percentage in the game. Your percentage is small and it's not that hard to eliminate it with a few rule changes. But I guess the Vegas houses feel strongly about the traditional game.

    Still, it would be a lot cheaper to change the game than to try to catch people based on what's in their heads. (Or in their shoes, if they're using an illegal computer. At least there they're trying to restrict the game to skill, including memory, although again a rules change could eliminate the advantage of having a computer.)

    I suspect that they like the fact that people know that there's a percentage to the player in 21, even though most people don't know how to get it. And unless you're playing on a team it's hard to make money fast at it. (If you can play well enough to get a 1% advantage, you win an average of $1 per hand at the $100 table, which comes out to perhaps $30 an hour. Real money, certainly, but a lot of work for it.)

    So if there are 6 players at the table and 5 of them are losing because they don't play the game very well, and they can catch you if you're making the big money playing on a team, it may still be to their advantage to leave the rules as they are. I've never heard of them messing with a small-time card counter, even though it's obvious they're counting.

    Sounds dumb to me. There's a lot more vigorous cheating going on (stealing chips when people aren't looking, for example) that's easier to catch.

  11. RFID's a great idea by dlt074 · · Score: 5, Interesting

    back when i worked in a casino i had this guy buy in for a couple hundred bucks on a crap game. i was handing the money into the box person and was joking that the money looked fake. he thought i was serious and so looked at it a little more then i had. turns out it was counterfeit and security pulled the guy off the game. turns out after talking to him and running back the tape, he was passed the bogus money from our our cash cage!

    the RFID in the chips is a good idea. we once had some bogus 100's come in one afternoon and everyone knew about them but i was still finding them a day later in "clean" banks. if they were all RFID'd you could scan a whole bank and see if it matches what you have down on paper as the proper amount. short a few 100 then there must be some bogus chips in there someplace better take a good long look.

    as far as the cheating goes. the only place it's even worth trying is on a crap game with two of the dealers in on it. when the stick person is watching the dealer who's in on it, that's when you pass off a stack of chips. nothing too high for you might call attention, maybe $100.00.you only do a few hundred a night on a BUSY game other wise they will spot you quick, greed is bad. craps is a very verbal game, unlike BJ where everything is done with hand gestures and easy for servailance to watch. in the years that i dealt craps never did servailance call down and ask about a payout we made or about any of the action on the game. it moves too fast and is too verbal for them to know what's going on. if you have a busy game and no box person or floor watching, you could very easy hand off a "payout" that was not legit and nobody would ask or care. there were many many times where i would book a bet verbaly without seeing the actual money on the table and the dice would roll and the person would either win or lose and they would payup or i'd pay them and there was NO money any where to be seen before that moment for the camera. which is why you are always nice to the crap dealer in front of you and watch what you joke around about, i've booked bets that people were joking about, at that point they pay up or they get escorted out of the casino. that was always my favorite way to get rid of people that pissed me off.

  12. Article ignores crackdowns on legal card counting! by VidEdit · · Score: 4, Insightful

    The odd aren't just stacked in the casinos favor, they also throw out players who win too much. Casinos use the surveillance systems and facial ID systems to detect and bar players who are card counters. Card counters are not cheaters, they are people who are really good at math who carefully observe what cards have been played and place bets accordingly--just as expert poker players do consciously or unconsciously. Cardcounting can give these blackjack players an extremely small edge. But casinos don't like to lose even to legitimate players. Rather than make adjustments to the game of blackjack, casinos throw winning cardcounters out and pass a blacklist of photos to other casinos around the country. This unethical practice of baring players merely for winning should be illegal, but the gambling influenced laws in places like Las Vegas fully support it. Casinos hold out the promise that you can win if you are good, but balk at actually letting you play if you are really good. Using high tech security to bar non-cheating players for winning is unethical and should be banned. The article should be condemned for giving the false impression that casino security is only used to catch cheaters.

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  13. Re:Cheating by RzUpAnmsCwrds · · Score: 4, Insightful

    "There are two types of cheating. Cheating the house and cheating the other players. I have a problem with the former and not the latter. When you're playing against the house, the odds are severely stacked against you."

    No, they aren't. Sure, if you play Keno, your odds suck. But if you play basic strategy (not hard to learn) and find a decent Blackjack game (NOT 5:6, etc.), the house edge is frequently below 0.5%.

    And cheating is cheating. If you don't like the house edge, don't play. Stealing chips from a casino is exactly the same thing as stealing real money.

    Remember, the cameras aren't just there to prevent you from cheating - they are also there to prevent the house from cheating. The NGC is, thankfully, a bunch of hard-asses who will pull licenses if the casinos don't play on the straight and level.

    In Vegas, the games are fair. Sure, the house has the edge, but the deck isn't stacked and the slots really are random.

    Playing BS Blackjack at $10 a hand, with a decent game (house edge 0.5%) costs only $.05 a hand. At 100 hands an hour, that works out to $5 an hour. It's every bit as cheap as a movie, and you get free drinks. Moreover, if you play for a few hours, you can probably get a comp for the buffet.

    Know how much you're willing to lose (and stick to it), know which games to play (and what the house edge is), know the rules, know the basic strategy, and have fun.

  14. Also used to catch legitamite gamblers by hellfire · · Score: 4, Interesting

    Under law it's illegal to tamper with slot machines, use slugs, play with tampered cards, etc. It's also quasi-illegal to do things like posting, which means changing your bet after the game has started. There are tons of gambler cheats.

    The most common "cheat" which isn't a cheat, however, is card counting in Black Jack. Casinos have been known to harass and eject gamblers who are expert card counters. The process is not illegal but they are labelled as cheats anyway. Card counting is little more than being really good at math and concentration and coming up with a consistent pattern. Casinos don't appreciate it because most games have an automatic "profit margin." Roulette, for example, has lots of ways to bet, but if you were to down the same amount of money on every number, you'd end up with winnings of only 80-90% of what you initially put down, essentially losing money. Mathematically they are designed to win unless you cheat.

    Blackjack is not the same. You can beat blackjack because the odds say if you play things right, you can come out on top even in the long run. That's why so many organizations have popped up in the past few decades running "black jack" companies. They are made up of math wizzes who train at card counting.

    Then the casinos find them, repeatedly showing up, figure out they are counting cards, and then eject them from the casino. It's completely legal so they can't arrest you, but because it's a private company they can refuse your business and ban you from their business, and future excursions to their casino would be considered trespassing.

    It's pretty scummy, though I must say it's an improvement over getting your knee caps shot off for being a good poker player, like in the good old mob days.

    --

    "All great wisdom is contained in .signature files"

  15. They nailed Carmack.. by xTK-421x · · Score: 4, Interesting

    JC made a post talking about how the casinos nailed him for card counting:

    A few of us took a couple days off in vegas this weekend. After about ten hours at the tables over friday and saturday, I got a tap on the shoulder...

    Three men in dark suits introduced themselves and explained that I was welcome to play any other game in the casino, but I am not allowed to play blackjack anymore.

    Ah well, I guess my blackjack days are over. I was actually down a bit for the day when they booted me, but I made +$32k over five trips to vegas in the past two years or so.


    Taken from here: http://doom-ed.com/blog/category/doom-ed/john-carm ack/

    --
    "TK-421, why aren't you at your post?"
  16. Re:Aren'te they more worried about employees... by TheCabal · · Score: 4, Informative

    Dealers are watched as much as the patrons are, sometimes more. Dealers stay clean by sticking to procedure- ever wonder why you HAVE to lay money down on the table and spread it instead of handing it directly to a dealer? Wonder why a dealer waves his/hers hands top and bottom when they get tapped out and go off shift?

    You probably haven't been "back of house" in a casino, but there are craploads of security and surveillance where only the employees go.

  17. Re:Who's the cheat? by Coryoth · · Score: 5, Informative

    Who's calling who a cheat? They can change the take percentage on their slot machines from the other side of the country? Not taking enough money and giving away to many winnings? Click the mouse a couple of times and fix that.

    No, they can't. First of all that's illegal, and is tracked. Second the machines simply aren't built to allow that. Slot machine have a locked "theoretical hold" value which is the theoretical long term amount that the machine will retain as a percentage of turnover. It is fixed, tracked and cannot be changed - certainly not at the click of the mouse.

    What a casino can and will do is lay out the machines on the floor with theoretical hold as a consideration. That is, they will endeavour to put a bank of relatively low hold nickel or dime machines near the entrance (not at the entrance mind you, the machine right at the front will be dollar machines or the like: they want casual gamblers wandering by to play the high stake slots) so you get to hear the sound of people winning. The rest of the floor layout is just as carefully designed, taking into account the theoretical hold, popularity of the game type, denomination of the game, quality of the floor space (harder to quantify), and so on to maximise profit. I used to work in the R&D department for a software company that helped casinos do this more effectively, so believe me, I know how exacting they are.

    Jedidiah.

  18. Confessions of a small time "cheater" by interstellar_donkey · · Score: 4, Interesting

    Back in '99-00 I was spending a lot of time at Las Vegas casinos. At the peak, I was visiting every other weekend, and I was card counting. Unlike the sensational stories popularized in the media, I was not a "big time" gambler. I was not doing this for a living, and I wasn't do it to strike it rich; I was doing it for fun.

    Typically, I'd go out there with $500, find a place with 2 deck blackjack (single deck in true form doesn't exist... the places that advertise it typically cut the deck so deep that you'll only get two hands out of each shuffle), and spend 40-50 hours over the weekend playing. At lower limit tables, even playing perfectly, that doesn't amount to much. On average, with that $500 stake, I'd live with about $700 in my pocket, up $200 for the weekend. This works out to about $5 an hour, less then minimum wage.

    Sometimes, if I was lucky, I'd come out with more, but I didn't always win. There were times where I'd leave with 5 crisp $100 in my pocket and return home with nothing but a few good stories.

    My favorite experience was at the Excalibur. One night, while playing low limit blackjack an older man sat down at my table. He was flanked on both sides by attractive women nearly half his age, and he was really, really drunk. He pulled a giant wad from his pocket of tightly rolled $100 bills, peeled off a few of them and laid them on the table. The dealer picked them up and said "Changing 300", to which this man yelled "no, damnit I don't want any chips that's my bet!" "money plays".

    He lost. He did it again. He lost. When he would win, he'd throw his winnings back on the table and give them back to the casino. Chips, he explained loudly, were "unlucky". His play was horrible; he'd hit a 16 with a 5 showing, double down on an 8 against an Ace. Meanwhile, I just sat there quietly plunking down my $5 bets, occasionally raising them to $10 or $15 when the count was good. This guy was attracting so much attention from the casino staff that my small potato attempt at card counting (which wasn't on that night anyway) went by unnoticed.

    At one point, he put $800 down on the table. This was a min $5, max bet $500. "I'm sorry sir, but the maximum bet here is $500". Almost instantly, the pit boss swooped down said "This man can bet as much money as he likes". Of course; this man was a drunken idiot trying to impress the those two woman (I don't know if they were prostitutes or what) by loosing as much money as he could. During the 45 minutes or so he was there, he lost about $20 grand. After that fat roll of $100s were gone, he got up with the help of his lady friends and stumbled out of the casino with a big grin on his face.

    I pretty much stopped playing seriously after three losing trips in a row. Now when I get to Nevada I might spend a few hours at the tables, but the all night sessions are a thing of the past. To this day, I still don't consider myself a "cheater"

    --
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