Research findings from a study of 45 police deaths on duty in the state of Queensland since 1950 are presented and this research identified situational variables that appear amenable to preventive efforts, with direct practical application in the development of protective measures for frontline officers. The findings show the need for an extremely cautious and meticulously planned approach by police to specific high-risk situations such as raids, sieges, roadblocks and vehicle pursuits, highlighting the importance of greater caution in more routine activities, such as speed detection, approaching stationary vehicles and driving to non-urgent calls for assistance.