A casino is a place where people can gamble and play games of chance. It has a long history, going back to ancient Mesopotamia and Egypt, and even earlier in China. While gambling in the United States wasn’t legal until Nevada made it so, many cities and towns have casinos with restaurants, entertainment venues, and shopping centers that draw tourists from around the world.
A lot of money is bet on these games, so there’s a big need for security in casinos. Cameras can be used to monitor the patrons, and there are usually security guards nearby to make sure nobody is cheating. The chips used to bet can also help because they don’t look like actual cash (and casinos use them to track the amount of money coming in and out).
While something about gambling seems to encourage people to try to cheat, steal, or scam their way into a jackpot, most casino owners spend a lot of time, energy and money on security. They hire and train highly trained staff to make sure that the rules of the game are being followed and to spot anything unusual or suspicious.
There’s also a more subtle aspect of casino security: The patterns of how casino games are played tend to have certain “normal” reactions and motions that can be spotted by trained eyes. The way a dealer shuffles and deals cards, for example, follows a set routine that can make it easy to spot blatant cheating.