I'm not sure where it was produced, but the "social engineers" were bragging that Baltimore's street bums of the druggie
persuasion come from "all income levels".
The other point I remember is that the street corner drug distribution is such a free-for-all, that violence is quite commonplace.
There has been some focus on cleaning up the street corner distribution since one law abiding family was murdered (arson) about 2 years ago for "ratting" on the local dealers. But its been pretty half hearted , IMO.