
Psychological debriefing was developed as a way to intervene with large numbers of trauma survivors in circumstances in which individual evaluation and treatment are not possible, such as after mass trauma, terrorist attacks, or disasters. The most commonly used model of debriefing is Critical Incident Stress Debriefing (CISD), a structured protocol developed by Mitchell.1 CISD has been used quite frequently with rescuers, first responders, and law enforcement personnel. After the terrorist attacks in the United States on September 11, 2001, CISD was widely applied to groups of persons who were affected by the attacks.
