The Bali bombing in 2002 initiated a new phase of trauma response for public health services in Australia, and the Royal Darwin Hospital in particular. The mental health response to the initial disaster was limited to a debriefing of Royal Darwin Hospital staff some time after the disaster. Following this initial episode, a number of important developments occurred within the Royal Darwin Hospital and nationally to further develop mental health resources. A mental health consultation liaison nursing position was established within the hospital. The Director of Mental Health for the Northern Territory, along with the Director of Psychiatry, was involved with an evolving national mental health response to mass trauma through the National Planning Group of Mental Health Response to Trauma. The improved recognition of mental health in disaster response, along with increased recognition and confidence in the consultation liaison nursing staff, considerably improved the mental health services available to patients and Royal Darwin Hospital staff following the second Bali blast in October 2005.