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Using Contact Lenses to Cheat Casinos

Contact lens to clearly see marked cards

You will hardly remember an older method of card game cheating than marking the cards. It was born at the same time people began playing cards for money. Cheaters have created numerous ways to fool the casino, and we have already described their tricks on Casinoz. It seems cheaters' imagination doesn't know the borders.

We must admit that most of these cheating incidents ended with the frauds being expelled from the game, their beating, imprisonment, and even murder if their rivals were members of criminal organizations. However, in the '90s, an American vision correction expert and his pretty girlfriend developed the best card marking technique in history.

Contact Lenses as a Tool for Casino Cheaters

A method of card marking with various pasty substances has been known since immemorial. At the time of the described events, a technique of card marking invisible to the naked eye using luminescent solutions was already known. These marks could be seen through glasses with a special coating.

The era of contact lenses increased the efficiency of this technique multiple times.

However, it had one major flaw: a reddish hue that could cause suspicion of security services. The optics specialist had to figure out a unique card marking system. It required a solution that had never been used before and new equipment. The result has exceeded all expectations.

  1. First, he removed the reddish tint from contact lenses, making them invisible to the human eye.
  2. Then he developed a solution that was almost invisible on the cards but visible in special lenses.
  3. However, another feature of the solution was a truly revolutionary discovery. It completely disappeared from the cards in just forty-five minutes after the application.

That means all traces of cheating disappeared unless cards were placed under infrared light for 45 minutes after applying the solution. Moreover, even if the casino had time to do it within 45 minutes, this deck of cards could not prove the cheater's guilt because the marks soon disappeared. The best the casino management could do was ask the suspect to leave.

Cheaters Teamwork

The scam organizer's girlfriend marked the cards. As a woman, she had more opportunities for this because she always had her vanity bag full of bottles, containers, and other items typical of a lady's handbag. When she looked into the makeup bag to get something out, it did not cause the slightest suspicion because all women who want to fix their hair or makeup do that.

During these seemingly innocuous movements, she touched a sponge soaked in a mixture and thus inflicted her fingertips.

Then she marked cards according to their value.

Moreover, they stored another method for seamlessly applying the solution to their fingers in their pockets. They used it when the main cheater had to participate in the process.

In this case, the inner part of the cigarette pack was coated with the solution.

It allowed them to put it on their fingers while taking a cigarette from the pack. Neither of them smoked, but they did it to achieve the goal.


How the Story Ended

The couple successfully fooled the casinos for five years, during which time they won several million dollars. Of course, there are plenty of ways to track such cheating nowadays. For example, cards can be viewed in infrared light during the game.

Nevertheless, there is no doubt that modern cheaters have not forgotten such a method because science does not stand still, which does not allow casino security to relax.

Conclusion

Have you ever dealt with card marking? Have you faced this technique while working in the casino? Or, perhaps, you were the one to practice that?

Please share your experience and exciting stories in the comments.

Frequently asked Questions

😵 How long ago have the cheaters started using contact lenses?

This trick is known for several decades.

😎 How do the contact lenses work?

Cheaters mark cards with a transparent solution that can only be seen through contact lenses.

🚔 Is card marking legal?

Of course not. It's a fraud prosecuted in any country.

Denis Anipchenko
Denis Anipchenko
Editor-in-chief and online gambling expert

Denis is a true professional with many years of experience in the gambling industry. His career started back in the late nineties when he worked as a croupier, pit boss, manager and casino manager. This unique experience allowed him to deeply understand the world of gambling from the inside. Since the late noughties Denis has dedicated himself to writing articles and analyses about gambling, and since the early tens he has become a key figure in the Casinoz team. Here he not only writes and edits content, but also creates reviews, shares his expertise and helps readers understand the intricacies of gambling. Denis combines practical experience and in-depth knowledge, making him one of the most respected experts in the industry. His writings are always up-to-date, proven and useful information for anyone interested in the casino world.

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Facts checked Alex Vasilev Scientific editor and fact checker
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