Cheating is rare, and it can be a rather heated topic. If you suspect that a player is cheating, it’s always a good idea to take a step back and consider the possibility that they are instead making an honest mistake. Inaccurate numbers on a character or mistakes on a Chronicle are far more likely to be math errors than deliberate cheating. When you see these issues, keep an open mind and work with the player to resolve them. Other issues, such as lying about the results of a dice roll or the contents of their character sheet or breaking the rules even after being informed of what they are, are more clear-cut.
If you believe a player is cheating, record the organized play number of that player and ask them to leave your table. Afterward, send an email to the Organized Play staff at organizedplay@paizo.com, including the player’s number and as much detail as you can remember about the situation.