Stalkers can inflict severe injury upon and have been known to kill their victims. Based on the detailed responses of 1,565 stalking victims, a set of key questions was produced with the aim of increasing the opportunities of police officers to identify potentially dangerous stalkers. Despite marked methodological differences and the inclusion of a large number of variables, regression analyses for significant correlates for physical assault per se and for severe violence largely reflected the results of earlier works. For severe violence (n=136), the most important correlate was a high level of victim fear, suggesting that victims are adept at assessing their own risk of stalker violence. The set of 11 questions performed well on preliminary tests and is presented here. © 2011 John Wiley & Sons, Ltd.