There are specific laws and regulations against collusion at blackjack tables, as it threatens the integrity of the game and can cause financial harm to casinos and players. Most regulated jurisdictions prohibit players from collaborating to gain an unfair advantage. Casinos utilize surveillance and security measures to detect and prevent collusion, and violations can lead to penalties such as bans, forfeiture of winnings, and legal action. These laws are designed to ensure fair play and protect the interests of all participants.