This document discusses casino surveillance and identifying suspicious player behavior. It provides questions surveillance professionals should ask to investigate players who have unexpectedly large wins over time, such as whether their wins are outside typical statistical deviations, if ratings are done by the same supervisor, or if players are passing chips between each other without recording it properly. Maintaining accurate player ratings and comparing plays across time and games can help casinos verify rebates paid out match actual losses and identify collusion between players or supervisors.

1. TRIGGER

2. The ResultCasino ProtectionAn email we received this year:“A player has been coming into a casino, 3 days a week for 2 years playing baccarat and has won over $1 million. According to the player rating system he only averages $700 a hand. Theoretically he should have lost heaps. He's been flying under the radar because his average bet is not that high, but one day a pit manager happens to take a closer look at his "lifetime" win loss and his jaw drops when he sees he's up so much. It don't smell right. Can you help?”

3. Questions surveillance professionals need to askAre you being alerted to WINS outside of standard deviations for a players TRIP?The objective is to identify players with a history of consistently beating the casino. If a player wins over a long period of time while playing at a disadvantage to the house, something is usually up. Analysis is typically on a player with more than 300 hours’ worth of playing timeStandard deviations are calculated by using the underlying odds of the type of bet being placed and the type of game being played

4. Questions surveillance professionals need to askAre the majority of the players rating being conducted by the same floor supervisor?It’s general practise for casinos to award rebates to losing players that played for longer hours. The rebate take various forms: 30% give back of losses, vouchers, air tickets, etcIt happens that floor supervisors enter false information regarding a player’s winnings/losses in order for the colluding supervisor and player to realise a false benefit. (If a supervisor overstates a player’s losses, it results in the casino paying out a larger rebate to the player.)

5. Questions surveillance professionals need to askAre you comparing play to other ratings which are occurring on the same game, same time?Players that play the same game at the same time might pass chips under the table to each other, which could result in information not being recorded correctly by the floor supervisor, resulting in the casino paying out a bigger rebate than it shouldFor example: Player A wins $5000. Player A passes $4000 of the winnings to player B without the floor supervisor taking note. Player B ends up breaking even or losing marginally, but records a win of approximately $4000 with player A’s chips. Player A continues to play, happens to lose $5000 and, while having broken even, claims a loss of $4000 and receives a rebate from the casino

6. Questions surveillance professionals need to askDid a players average wager increase since past trips?We only alert in a scenario where the average bet suddenly spikes upward from the players usual average bet, not in a scenario where there is a more gradual increase in average betWhat is the average bet on winning plays vs average bets on losing plays?This information is useful for human interpretation and is included in any player analysis output that results from other alerts

7. The Answer – “Surveillance Triggers”Casino ProtectionMake sure you pull the TRIGGER first! Be alerted by the speed of CheetEye’s “Surveillance Triggers” and “protect with insight”