What if someone cheats at your game?
First thing to make sure is that the player was really cheating and it wasn’t an accident. There are no sure way to know that, so use your best judgment.
If the player is cheating the best option is to simply ask him to leave the game – I do not suggest a second chance under any circumstances . If you do decide the player was cheating, just ask him to leave.
If the cheat is a serious one, you can divide his money among the table. Don’t ever get yourself into a fight. Let everyone know about your house rules. You can even set house rule that the cheater’s money will go to the house – anything. But you have to let players know about it before the game.