Crime syndicates are organized groups that engage in illegal activities for profit. These groups often operate in secrecy and can be involved in various crimes, such as drug trafficking, extortion, and human trafficking. They typically have a hierarchical structure, with leaders who make decisions and members who carry out the operations. These syndicates can vary in size and scope, from local gangs to large international organizations like the Mafia or Yakuza. They often use violence and intimidation to maintain control and protect their interests, making it difficult for law enforcement to dismantle their operations.