system
Given the following post, respond as if you're commenting on Reddit:
human
If even police departments in rich countries struggle to solve a high percentage of crimes (e.g. murder clearance rate of around 60%), then just how bad is it in poor countries with very poor police departments?
gpt
Really bad. I've been reading Janice Pearlman's *Favela*, on Rio, and they have clearance rates of something like 10%, and less for drug violence in the favelas themselves. 

But it is certainly quite complicated, and really depends on the place you're talking about--Rio is exceptional because of the high numbers of firearms and the drug trade. In Mumbai, according to Katherine Boo's reporting, in similarly poor slums, there really isn't much gun violence to contend with. There are stabbings and acid attacks and such, but the police are a much bigger--though terribly corrupt--apparatus. They do end up making arrests in many more cases.