The study was prompted by the general consensus in law enforcement circles that less-than-lethal weapons are effective in reducing police killings of citizens in the line of duty. The cities all had populations of more than 100,000. The analysis used bivariate and multivariate techniques to assess the effects of the availability of nonlethal devices on justifiable homicides by police. Findings produced no data indicating that police killing rates are affected by the availability of less-than-lethal weapons. To the contrary, the findings revealed overwhelmingly negligible results. Findings suggest that despite the high hopes of many law enforcement authorities, less-than-lethal weapons do not provide an improvement in preventing police-citizen killings. Nevertheless, methodological issues make it impossible to conclude that less-than-lethal weapons are not capable of significantly reducing police-citizen killings. Tables, notes, and 14 references (Author abstract modified)