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Detecting card counters
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Monitoring player behavior to assist with detecting the card counters falls into the hands of the on-floor casino personnel ("pit bosses") and casino-surveillance personnel, who may use video surveillance ("the eye in the sky") as well as computer analysis, to try to spot playing behavior indicative of card counting; early counter-strategies featured the dealers' learning to count the cards themselves to recognize the patterns in the players. In addition, many casinos employ the services of various agencies, such as Griffin Investigations, who claim to have a catalog of advantage players. If a player is found to be in such a database, he will almost certainly be stopped from play and asked to leave regardless of his table play. For successful card counters, therefore, skill at "cover" behavior, to hide counting and avoid "drawing heat" and possibly being barred, may be just as important as playing skill.
There have been some high-profile lawsuits involving whether the casino is allowed to bar card-counters.[23] Essentially, card-counting, if done in one's head and with no outside assistance from devices such as blackjack computers, is not illegal. Making calculations within one's own mind is not an arrestable offence. Using an outside device or aid, however, was found illegal in a court case in Nevada. In this case, two individuals were convicted of cheating for using a video device to gain knowledge of a blackjack dealer's hole card.[24] While this case is clearly distinct from pure card-counting, the precedent could possibly be applied to electronic devices used by players to assist in counting cards. At the time of the trial, however, there was no anti-device law in Nevada, and the law that was written after this case is considered by many attorneys to be unconstitutionally vague.[citation needed] Still, the law has been adopted by most other states with casinos, and no player has yet tried the constitutionality of the law.
Casinos do not tolerate card counters or practitioners of other legal professional gambling techniques willingly and, if permitted by their jurisdiction, may ban counters from their casinos. In Nevada, where the casinos are ruled to be private places, the only prerequisite to a ban is the full reading of the Trespass Act to ban a player for a year. Some skilled counters try to disguise their identities and playing habits; however, some casinos have claimed that facial recognition software can often match a camouflaged face with a banned one. In the experience of most professional gamblers, this is untrue, and a 2004 book by a Las Vegas casino surveillance director, The Card Counter's Guide to Casino Surveillance, also declares this assertion to be an overstatement. Approximately 100 casinos in the United States used the Griffin Investigations consulting firm to help them track down and monitor card counters, before the firm's bankruptcy as a result of a lawsuit for libel filed by professional gamblers. |
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BRISBANE买房记，慢慢听我讲故事吧。。。文字部分结束，照片上传完毕！ (2009-4-7) lifengj 
楼主:Natuzzi
发表于 2009-5-26 18:53
遇见同志了
