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- Griffin_Investigations abstract "Griffin Investigations was once the most prominent group of private investigators specializing in the gaming industry.[citation needed] The company was founded in 1967 by Beverly S. Griffin and Robert R. Griffin.The company maintained dossiers on card counters, serial jackpot winners, and other individuals, chiefly professional gamblers using legal techniques to gain an advantage in casino games; these profiles were regularly published in the Griffin Book, and distributed to subscribing casinos. Griffin Investigations was instrumental in ending the MIT Blackjack Team’s winning streak,[citation needed] after a Griffin investigator purchased the names, photographs, and other details identifying the group’s members and the company distributed the information to casinos. Roughly half of the major casinos in the US once subscribed to Griffin’s services.[citation needed]Griffin also marketed a controversial face recognition system that used computer software to compare gamblers' faces against several volumes of mug shots. Beverly Griffin, co-owner of Griffin Investigations, estimates as many as half of Southern Nevada's casinos now use biometric technology to identify the faces of card cheats or other undesirables. However, a Las Vegas casino surveillance director (writing under the pseudonym Cellini) reported in the 2004 book The Card Counter's Guide to Casino Surveillance that biometric technology was considered virtually useless by actual casino surveillance operatives because of overwhelming numbers of false reads.".
- Griffin_Investigations wikiPageExternalLink griffin.html.
- Griffin_Investigations wikiPageExternalLink surveillancetalks.htm.
- Griffin_Investigations wikiPageExternalLink www.griffininvestigations.com.
- Griffin_Investigations wikiPageExternalLink 2003-12-31-casino-db_x.htm.
- Griffin_Investigations wikiPageID "1930294".
- Griffin_Investigations wikiPageRevisionID "570321581".
- Griffin_Investigations hasPhotoCollection Griffin_Investigations.
- Griffin_Investigations subject Category:1967_establishments_in_Nevada.
- Griffin_Investigations subject Category:Companies_based_in_the_Las_Vegas_Valley.
- Griffin_Investigations subject Category:Companies_established_in_1967.
- Griffin_Investigations subject Category:Companies_that_have_filed_for_Chapter_11_bankruptcy_in_2005.
- Griffin_Investigations subject Category:Gambling_in_the_United_States.
- Griffin_Investigations subject Category:Private_detectives_and_investigators.
- Griffin_Investigations type Abstraction100002137.
- Griffin_Investigations type CompaniesBasedInTheLasVegasValley.
- Griffin_Investigations type CompaniesEstablishedIn1967.
- Griffin_Investigations type Company108058098.
- Griffin_Investigations type Group100031264.
- Griffin_Investigations type Institution108053576.
- Griffin_Investigations type Organization108008335.
- Griffin_Investigations type SocialGroup107950920.
- Griffin_Investigations type YagoLegalActor.
- Griffin_Investigations type YagoLegalActorGeo.
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- Griffin_Investigations comment "Griffin Investigations was once the most prominent group of private investigators specializing in the gaming industry.[citation needed] The company was founded in 1967 by Beverly S. Griffin and Robert R.".
- Griffin_Investigations label "Griffin Investigations".
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- Griffin_Investigations sameAs Q5608808.
- Griffin_Investigations sameAs Griffin_Investigations.
- Griffin_Investigations wasDerivedFrom Griffin_Investigations?oldid=570321581.
- Griffin_Investigations isPrimaryTopicOf Griffin_Investigations.