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Like Chicago Police, Cook County and Illinois Officials Track Thousands of People in Gang Databases

Gang files at other agencies include missing information and dead people.

All the Ways You Can Help Our Reporting Right Now in Illinois

We’ve got a lot of Illinois stories in the works. Here are the questions we’re putting to you.

Download the Gang Databases We Got From Illinois State Police, Cook County Sheriff’s Office and Chicago Police Department

There’s info that’s unverified, subjective and simply wrong, yet government officials can access and use it, with potentially troubling consequences.

Documents Raise New Concerns About Lithium Study on Children

Prominent University of Illinois at Chicago psychiatrist enrolled her young sons as healthy control subjects in troubled study.

Three City Sticker Tickets on the Same Car in 90 Minutes?

Chicago has issued 20,000 duplicate city sticker tickets since 2007. City officials are now looking at whether this violates a city ordinance and say motorists might be in for a refund.

ProPublica Illinois is an independent, nonprofit newsroom that produces investigative journalism with moral force. Headquartered in Chicago, we are the first regional publishing operation of ProPublica, dedicated to stories about big issues that affect people living and working in the state of Illinois. Learn more.

How to Find Out About Hot Dogs, Puppy Names and Parking Tickets

FOIA is the all-purpose journalism weapon of choice.

How ProPublica Illinois and WBEZ Worked Together to Find Thousands of Duplicate Tickets in Chicago

We heard from you about how ticket debt, especially from $200 city sticker citations, has affected you. And we would like your help as we continue our reporting.

I Went in Search of Abandoned African-American Cemeteries

I found a couple, and some fascinating history, too.

Who Are You, Readers? And Do You Trust Us?

Hi, I’m Helga, ProPublica Illinois’ engagement reporting fellow, and I would like to ask for your help.

Federal Judge to Consider Independent Monitor for Illinois Child Welfare Agency

State officials have failed to deal with children stuck in psychiatric hospitals.

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