The Chicago police have way better scams gong than risking their lives against people who can defend themselves.They say, "follow the money". I think that would quickly reveal the weak link in Chicago.
http://www.nbcchicago.com/investiga...cers-Allegations-of-Corruption-291607971.html
http://www.nydailynews.com/news/nat...-department-corrupt-country-article-1.2457985
http://www.nytimes.com/2015/11/19/u...ice-result-in-discipline-data-shows.html?_r=0
http://chicagoist.com/2015/05/29/_chicago_city_of_the.php