Patient assaults on staff have been a continuing risk for inpatient and community-based psychiatric healthcare providers. This study presents a ten-year analysis of the characteristics of staff victims of patient assaults in one public mental health system of care, a period which included the transition to managed care initiatives within this system. Assault data was gathered within the context of the Assaulted Staff Action Program (ASAP), a voluntary, system-wide, peer-help, crisis intervention program that is designed to assist employees with the psychological sequelae of these patient events. In general, the findings were consistent with previously reported inpatient and community studies. Less experienced, less formally trained employees remain at high risk. The impact of managed care initiatives was found in community residences where younger female staff were most at risk. The implications of the findings and possible risk management strategies are discussed.