Do you believe that there are people cheating at Omaha game in a live game? They may cheat alone, or in a team or small groups. Though it's not always easy to tell, there are different types of cheating and you can bet that some of it still goes on even in modern casinos.
Player collusion is the most obvious example, such as the dealer and the player. If the dealer uses chip tray scanning camera, poker winner predictor and bar code marked cards, it would tell the player the best two hands directly by a spy earpiece. In this way, the player can make the best bet in Omaha game.
If they get into in home games or private club, they may use IR marked poker cards and long distance infrared camera. The cheater can know the value of specific cards while only looking at the back of the cards, and tell his partner by marked cards earpiece.
If someone cheating personally, they may use invisible ink contact lenses and luminous marked deck. Just as the same as the IR poker cards, the cheater can see the value of specific cards. In this way, he can finish the cheating by himself. Lower risk and more reward.
Invisible ink pen to mark playing cards is the other way to cheat for Omaha cheating. It's no worries that you don't know how to use invisible ink to mark cards yourself at home. It's easy and simple, just like writing on paper. When the invisible ink gets dried, the marks you made will disappear and only when you use marked cards contact lenses, can you see them.
Except for marking with marked cards ink, there is another way to mark cards. Decks can be marked while playing using fingernails, or by bending or crimping the cards in a position that the cheater can read from across the table.
For such many ways to cheating at Omaha game, if you still have no idea how one can cheat in casino, you will be beaten badly.