Chicago Field Division

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Welcome to the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) Chicago Field Division. Our division is responsible for ATF criminal enforcement and industry regulatory activities in northern Illinois, northern Indiana and eastern Wisconsin. Our dedicated work force is comprised of special agents, investigators, auditors, technicians and support staff. Read more about the Chicago Field Division.

Management Team

Kristen de Tineo 
Special Agent in Charge (SAC)

Brendan D. Iber
Assistant Special Agent in Charge (ASAC)

Bennie Mims
Assistant Special Agent in Charge (ASAC)

Brian Kolar
Assistant Special Agent in Charge (ASAC) 

Thomas Arnold
Director of Industry Operations (DIO)

Kimberly Nerheim
Public Information Officer (PIO)

Logo for ATF Tips - Submit an anonymous tips app

Text the code ATFCHIC to 63975 and then follow the link to create a report.


Division Contact Information

175 West Jackson Blvd., Suite 1500
Chicago, Illinois 60604

Voice: (312) 846-7200
Fax: (312) 846-7201
Twitter: @ATF_Chicago


Chicago Field Division Joint and Related Press Releases

New Press Release: March 24, 2021 - Illinois Attorney General - Attorney General Raoul Announces Charges in Straw Purchasing Scheme

Nov. 14, 2020 - Kendall County Sheriff’s Office - Kendall County Sheriff’s Office Investigating Homicide in Boulder Hill

Oct. 19, 2020 - Racine Police Department, Racine, WI - Homicide Suspect Arrested 

Sept. 23, 2020 - State's Attorney, Wheaton, IL - Bond Set for Naperville Man Accused of Gunrunning

March 23, 2020 - Lake County Sheriff's Office -Sheriff’s Special Investigations Group and ATF Arrest Convicted Felon, Gang Member for Drugs, Weapons Offenses

March 2, 2020 - State's Attorney, Wheaton, IL - Nine Reputed Gang Members Charged with Weapons/Drug Offenses

Dec. 2, 2019 - State's Attorney, Lake County, IL - Galesburg Man Sentenced to 9 Years

Nov. 8, 2019 - LaPorte County Drug Task Force - Gun and Drugs Seized in Early Morning Raid in LaPorte

Sept. 11, 2019 - Illinois State's Attorney - Bond Set for Hanover Park Man Accused of Breaking into Gun Shop/Stealing Guns

Aug. 29, 2019 - Lake County Sheriff's Office - Convicted Felon Indicted After Selling Firearms to Undercover Detectives in Lake County, Illinois

July 18, 2019 - Kankakee County Sheriff's Office - 2 Area Men Arrested on Federal Weapons Charges

July 11, 2019 - Joliet Police Department: Search Warrant Leads to Recovered Firearms, Drugs

May 29, 2019 - Joint Effort By Local and Federal Law Enforcement Agencies Lead to Indictment for 2018 Murder of Chicago City Worker

April 22, 2019 - Joliet Metropolitan Area Narcotics Squad

March 13, 2019 - Lake County Sheriff's Office Media Release - Convicted Felon Arrested After Falsifying FOID Application, Possessing Over a Dozen Firearms



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