Anger is a common antecedent of aggressive behavior, and uncontrolled anger can lead to aggression and violence. Anger appears to be a particularly important emotion in residential settings with offenders. Anger management with offenders, particularly violent offenders is common form of rehabilitative activities. Nurses are in a position of power in correctional facilities, one which allows them to obtain extensive knowledge about clients through various methods of assessment and evaluation, including continuous monitoring, counseling, and interviews. Moreover roles of nurses within the prison include supporting mental health problems, assessing mental health problems, working with physicians to develop care plans, crisis assessment, providing support and education, and integrating internal and external mental health services.