第二部分：桌牌游戏出千 · Keno

Keno Ticket Marked after the Draw

基诺（Keno）已报道技巧等级：Intermediate

工作原理

The ticket is marked after the winning numbers are already known, then presented as if it had been written before the draw. The claim is for a game that has finished. This is not the Ron Harris method. Harris attacked the machine that picked the numbers. Here the numbers were honest. The ticket was not.

出现场合

Keno games and keno cashiers

有据可查

In Kelley v. State, 348 P.2d 966, decided on 5 February 1960, the Nevada Supreme Court affirmed the convictions of Don Kelley and Robert Edmond Black. They had presented a false keno ticket to the Beck Corporation in Reno and were convicted of attempting to obtain $25,000 by false pretenses. The court said they had marked a winning ticket after the winning numbers were known.

识别与防范建议

付费部分

监控室如何识别keno ticket marked after the draw，以及如何防止其再次发生——为值班人员而写，而非为普通读者。

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本文作为监控、合规及博彩营运专业人员的侦测参考发布。阈值与调校由各家娱乐场自行设定。本文不构成任何操作指引：描述该方法的目的仅在于使其能够被识别。