ryana posted a link re crime rates not really making a difference.
"While some have blamed violent crime for being responsible for police violence in some communities, data shows that high levels of violent crime in cities did not appear to make it any more or less likely for police departments to kill people."
Your turn to back up your claim that "Crime rate is correlated with amount of situations where use of lethal force is necessary."
Yeah, I'm still waiting to get free 30 minutes to check the actual data and compare it to data outside of US.
My initial assumption was based on the soviet research from the late 80s on this subject, but I couldn't easily find a link right now. (Yes, I know what you think of soviet police system, and you're right in general, but I know the people who did this research and the political climate itself was pretty vegetarian too at the time).
How is it not obvious?