Security interventions for workplace violence in the emergency department.

EDs should not rely on police response to prevent or handle violence. The finding of a high proportion of events being perpetrated by repeat offenders indicate that data sharing between EDs for identification of perpetrators of WPV can be useful for prevention of future episodes. ACEM policy for WPV in EDs should encompass further details on security credentialing and preventive strategies towards minimisation of WPV in the Australian EDs.