The main job of the Chicago police it to investigate crimes, and make sure there are no vigilence committees.
The main job of he Chicago Police, as best as anyone can tell, is to draw chalk lines around bodies. And arrest anyone who used firearms to resist assault or robbery.
I’m from Chicago. Mayor Daly, Sr. is rolling in his grave right now. Mobs of black teenagers rampaging Michigan Ave? Would never happen. Look what he did to the hippies when the DNC held their convention there in the 60s.