What the Chicago city administration should do first is call in ex mayor of New York, Rudy Giuliani and his police commissioner Bill Bratton, and ask them how they solved NYC’s crime problems.
https://en.m.wikipedia.org/wiki/Mayoralty_of_Rudy_Giuliani“In Giuliani's first term as mayor the New York City Police Department, under Giuliani appointee Commissioner Bill Bratton, adopted an aggressive enforcement and deterrence strategy based on
James Q. Wilson's Broken Windows research. This involved crackdowns on relatively minor offenses such as graffiti, turnstile jumping, and aggressive "squeegeemen," on the principle that this would send a message that order would be maintained and that the city would be "cleaned up."
...
Giuliani also directed the New York City Police Department to
aggressively pursue enterprises linked to organized crime, such as the Fulton Fish Market and the Javits Center on the West Side (Gambino crime family). By breaking mob control of solid waste removal, the city was able to save businesses over $600 million.
One of Bratton's first initiatives was
the institution in 1994 of CompStat, a comparative statistical approach to mapping crime geographically in order to identify emerging criminal patterns and chart officer performance by quantifying apprehensions. The implementation of CompStat gave precinct commanders more power, based on the assumption that local authorities best knew their neighborhoods and thus could best determine what tactics to use to reduce crime. In turn, the gathering of statistics on specific personnel aimed to increase accountability of both commanders and officers. Critics of the system assert that it instead creates an incentive to underreport or otherwise manipulate crime data.[2] The CompStat initiative won the 1996 Innovations in Government Award from the Kennedy School of Government.[3]â€
I witnessed the change and the transformation of the city was nothing less than miraculous.