Voluntary Violence in the work place is an important issue which is rarely addressed in epidemiological occupational studies. However some papers highlighted the at risk professions. According to OSHA violence is the third leading cause of death in the work place and the first leading cause for women in the United States.
People working in the mental health field rank just behind policemen and medical workers rank just behind taxi drivers in the top ten of violence in the work place
So that the use of metal detectors and taser in Emergency Rooms (ER) is more and more disseminated.