The Committee on Public Safety affirmed harsh fines and jail terms for crimes committed in parks.
Overall crime from Jan. 1-June 30 also decreased for the third straight year, down 15 percent from 2013.
U.S. Rep. Robin Kelly prepared what she called the "blueprint for ending the crisis" of gun violence.
The City Council passed a court-ordered ordinance for licensing gun shops.
But the mayor's ordinance would set strict rules for sales and for the location of gun shops.
Mayor Rahm Emanuel planned to submit the ordinance at Wednesday's City Council meeting.
The mayor will seek a six-month delay in a court order allowing gun shops in the city.
Rahm and McCarthy touted the study's findings to renew calls for after-school programs and gun control.
U.S. Sen. Mark Kirk joined Police Supt. Garry McCarthy in urging mandatory minimums for gun violations.
Mayor Rahm Emanuel did not back down from his call for a three-year sentence for gun violations.
Chicago aldermen spoke out against a resolution calling for stricter gun sentencing policy statewide.
The North Side legislator plans to introduce a bill closing a concealed-carry loophole.
The NRA's Todd Vandermyde took issue with a few details, but called it "a great day for gun owners."
"The City Council believes booze and bullets don't mix," Ald. Edward Burke said of the ban.
As students from closing schools prepare for a new start, the city is stepping up its security efforts.
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