"This Field Guide is intended for mental health and disaster workers; first responders; government agency employees; and crime victim assistance, faith-based, healthcare, and other service providers who assist survivors and families during the aftermath of mass violence and terrorism. All who come in contact with victims and families can contribute to restoring their dignity and sense of control by interacting with sensitivity, kindness, and respect. This Field Guide provides the basics of responding to those in crisis."
U.S. Dept. of Health and Human Services: http://www.hhs.gov