Chicago police Sgt. Larry Snelling testified during the trial of three Chicago police officers accused of trying to cover up the killing of Laquan McDonald on Wednesday, Nov. 28, 2018. (Zbigniew Bzdak / Chicago Tribune / Pool)

Chief Larry Snelling, tapped by Mayor Brandon Johnson to lead the Chicago Police Department, served as an expert witness in more than two dozen civil and criminal cases involving police officers, according to court records reviewed by WTTW News.

Larry Snelling speaks at a news conference Monday, Aug. 14, 2023. (WTTW News)

Pending City Council approval, Larry Snelling faces leading the Chicago Police Department at a time when residents are demanding answers to the city’s perennial problem of violent crime. He will also have to lead the department through the transformational change demanded by a court-ordered consent decree.

(WTTW News)

Raymond Comer, 38, filed a seven-count civil suit in Cook County court in which he claimed he was shot by a Chicago police officer multiple times as he sat inside a vehicle last August.

Larry Snelling and Mayor Brandon Johnson shake hands while addressing the media during a press conference announcing Snelling’s appointment as the Chicago Police Department’s superintendent Aug. 14, 2023. (WTTW News)

“This is an extremely important day for the city,” Snelling said Monday. “For people who grew up like I did — a resident of Englewood and a student of the Chicago Public Schools — I want you to know the possibilities are limitless.”

(Michael Izquierdo / WTTW News)

According to Chicago Police Department data, 28 people were shot in 19 separate shooting incidents between 6 p.m. Friday and 11:59 p.m. Sunday.

Larry Snelling (Credit: Chicago Police Department)

Larry Snelling, a longtime Chicago Police Department insider with a decades-long career in law enforcement, has been tapped to lead the department as the city’s next top cop.

(Michael Izquierdo / WTTW News)

The city of Chicago and the Illinois Attorney General’s Office negotiated an agreement to shift oversight of CPD’s stop-and-frisk practices into a consent decree governing the department.

The three finalists for Chicago Police superintendent: Angel Novalez; Larry Snelling; Shon Barnes. (Credit: Chicago Police Department and Madison Police Department)

This weekend will mark the end of Johnson’s 30-day window to pick the next superintendent of the Chicago Police Department from a list of three finalists: Angel Novalez, the head of CPD’s office of constitutional policing and reform; Larry Snelling, the chief of CPD’s counterterrorism bureau; and Shon Barnes, the police chief in Madison, Wisconsin.

(WTTW News)
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A new state law will soon allow non-citizens who are both legally eligible to work in the U.S. and authorized to possess firearms under federal law to become police officers and deputy sheriffs.

A memorial for 9-year-old Serabi Medina in Portage Park on Aug. 8, 2023. (WTTW News)

Michael Goodman, 43, has been charged with first-degree murder in the shooting that left Serabi Medina dead outside her home on the city’s Northwest Side.

Police investigate the apartment building of the shooter at the scene where an 8-year-old Chicago girl was killed in Portage Park, Sunday, Aug. 6, 2023. (Anthony Vazquez / Chicago Sun-Times via AP)

The charge was filed against Michael Goodman, 43, in the death of Sarabi Medina, Chicago police announced. The shooting happened Saturday night in Chicago’s Portage Park neighborhood.

A file photo shows a crime scene blocked off by the Chicago Police Department. (WTTW News)

According to Chicago Police Department figures, 27 people were shot in 25 separate shooting incidents between 6 p.m. Friday and 11:59 p.m. Sunday. That included the young girl who was fatally shot Saturday in the 3500 block of North Long Avenue.

(WTTW News)

A city watchdog report has found Chicago Police Department rules that require the reporting of officer misconduct have been underenforced and are in some cases conflicting — issues which contribute to the existence of a so-called “code of silence.”

(WTTW News)

Chicago leaders joined “Chicago Tonight” co-host Brandis Friedman in a discussion focused on how residents, policymakers and community groups are working to address the deeply rooted issue of gun violence.

(Michael Izquierdo / WTTW News)

Illinois responses to the more nuanced system improved from the previous year.

The nuanced data is valuable to state agencies making budget decisions, but also is used by citizens, researchers, advocates and nonprofit organizations targeting specific issues.

A file photo shows a crime scene blocked off by the Chicago Police Department. (WTTW News)

According to Chicago Police Department data, 47 people were shot in 29 separate shooting incidents across the city between 6 p.m. Friday and 11:59 p.m. Sunday.