Casino reactions Card counting
1 casino reactions 1.1 detection 1.2 technology detecting card counters 1.3 countermeasures casino reactions detection monitoring player behavior assist detecting card counters falls hands of on-floor casino personnel ( pit bosses ) , casino-surveillance personnel, may use video surveillance ( eye in sky ) computer analysis, try spot playing behavior indicative of card counting. counter-strategies featured dealers learning count cards recognize patterns in players. many casino chains keep databases of players consider undesirable. casinos can subscribe databases of advantage players offered agencies griffin investigations, biometrica , osn (oregon surveillance network). griffin investigations filed chapter 11 bankruptcy protection in 2005 after losing libel lawsuit filed professional gamblers. in 2008 chapter 11 payments said date , requirements met, , information being supplied using data encryption , secure servers. if player found in such database, stopped play , asked leave regard...