Casinos employ a variety of strategies to handle cheating or fraud in Blackjack. They utilize advanced surveillance systems, including cameras and facial recognition technology, to monitor gameplay and identify suspicious behaviors, dealers and staff are trained to spot potential cheating tactics, such as collusion or card marking. When fraud is detected, casinos may intervene immediately, ejecting the individuals involved and potentially banning them from the premises. They also document incidents and may involve law enforcement if necessary.