The incidence of aggression is more frequent in emergency departments (25%) and inpatient psychiatric hospitals (32.4%) (
Bowers 2011; NHS Protect 2013). The relationship between psychosis and violence is uncertain. Some evidence to suggest that individuals with a mental disorder/severe mental disorder is more likely to be violent than the general population (Fazel
2006; van Dorn 2012); however others argued that its the substance misuse, instead of mental health problem itself, increased the risk for violence (Elbogen 2009). The recent published guideline indicated that mental disorder is probably only a predictive factor of violence, but substance misuse is more likely related to the incidence of violence (NICE 2015). Swift containment of
Bowers 2011; NHS Protect 2013). The relationship between psychosis and violence is uncertain. Some evidence to suggest that individuals with a mental disorder/severe mental disorder is more likely to be violent than the general population (Fazel
2006; van Dorn 2012); however others argued that its the substance misuse, instead of mental health problem itself, increased the risk for violence (Elbogen 2009). The recent published guideline indicated that mental disorder is probably only a predictive factor of violence, but substance misuse is more likely related to the incidence of violence (NICE 2015). Swift containment of