I'm doing a research paper about how different cities have different quality of police service. I want to do a regression where the dependent variable is number of sustained complaints per 10 officers that year received by that agency. But maybe there is a better measure. I want to avoid using crime as a measure of police quality though, because I think crime is only partly affected by police service in the area.
Anyway, the thing I need to do first of all is get an idea of other work people have done in this area. And this area to me would be analyzing markets for public police, analyzing police service quality, analyzing demand for police service and whether it relates to quality of police service- same with supply, analyzing changes in police force for different cities, identifying factors that improve/diminish city-wide quality of police service.
Could someone suggest articles about measuring the quality of police service in a city? Or equilibrium quantity of police service in a city? Or things related to what I want to research? Especially if they do not focus on crime?