Understaffed? More like mismanaged. They can get 30+ uniformed officers to a shooting within minutes. Can't stop anybody from shooting at people though (even officers). They aren't even an effective deterrant against gang violence. The gangs don't care about cops because they know the cops are afraid of them. A couple weeks ago nearly 40 officers were present at the location of a shooting, and they (the officers) were shot at. Did they find out who was shooting at them? No. They ducked and covered, and waited for the shots to stop. Then they went about their business chatting to one another while detectives interviewed witnesses. What good are 30 uniformed officers standing around if they can't even deter a follow-up shooting? They might be good people, but Chicago cops are pretty close to worthless because they're mismanaged and poorly trained.
"Stupid can happen anywhere at any time; so you best be prepared for it."