There are some areas of practice where incidents of violence are more prevalent. these include emergency rooms, psychiatric facilities, geriatric facilities, and where else?

The answer already given is an excellent answer and I would agree 100% with the suggestions made. The only other area of practice that I can think of that could be added to the list would be day/residential facilities/centers for certain types of behavioral disorders not linked to psychiatric disorders for example autism. One form of autism can lead to very violent outbursts and incidents of attacks on the support workers, other residents/visitors and themselves.