For example, if a correctional officer opened an Aryan Brotherhood and Mexican Mafia cell, which words might exchange, their mix can eventually explode. In order to avoid a brutal violence in the prison system, prison guards release each group in different times. Some inmates joined gangs in prison to protect themselves and to avoid violence, but they are not aware that everything comes with a price. Rival gangs might threaten a new member from another gang in order to show that they are the dominant in the prison, while others might murder them. It is determined that some gang members search for their friends in prison to ally themselves with them, so they can continue to cause harm outside the prison world (Carlie, 2002). In addition, some inmates were members of a gang before sentenced to prison, so their knowledge is well known on how to conduct business