Critical Incident Stress Management, or CISM, is an intervention protocol developed specifically for dealing with traumatic events. It is a formal, highly structured and professionally recognized process which helps those involved in a critical incident to share their experiences, vent emotions, learn about stress reactions and symptoms or receive referral for further help if required. It is not psychotherapy. It is a confidential, voluntary and educative process, sometimes called ‘psychological first aid’.
Also visit http://www.crisisresponse.org/ for more information.