Tag Archives | Policing

Making Progress in the Chicago Police Department, 1862–2024

Tony Cheng, Johann Koehler

Sociological Science April 16, 2026
0.15195/v13.a17


Claims to have made progress are a mainstay of organizational reputation management. However, confusing and contradictory performance expectations can make progress difficult to locate among a police department’s priorities. A case study of the Chicago Police Department’s front-facing pronouncements over more than a century and a half clarifies how a bureaucracy works, stretches, and repackages “progress” to resolve those confusions and contradictions. We find that progress claims featured more prominently and fervently during moments when the department had reason to believe its legitimacy was threatened. Within that general pattern, we also find specific patterns in the form that progress claims took. We observe the stable reliance on two techniques to gesture toward progress the police either promised to enact or that it claimed it had already delivered: the police shifted goalposts by cycling through inconsistent measures of favorable performance from one year to the next, and they drummed crises to dramatize the obstacles that favorable performance required them to overcome. By showing how both techniques reinforced one another, we clarify how a police department “makes” progress.
Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 4.0 International License.


Tony Cheng: Department of Sociology, Duke University.
E-mail: tony.cheng@duke.edu.

Johann Koehler: Department of Social Policy, London School of Economics and Political Science.
E-mail: j.koehler@lse.ac.uk.

Acknowledgments: We thank the London School of Economics and Political Science Phelan US Centre for support that made this research possible; to Vani Kant and Maryam Auwalu for excellent research assistance; to Eric Monson, Lauren Nichols, and the Duke Center for Data & Visualization Sciences for advice about representing the findings; and to Calvin Morrill, Tim Newburn, Coretta Phillips, Gil Rothschild Elyassi, Tobias Smith, and participants in the LSE’s Criminal Justice Forum for comments that sharpened the analysis. Direct correspondence to Tony Cheng, Department of Sociology, Duke University, 417 Chapel Drive, Box 90088, Reuben-Cooke Building Room 258, Durham, NC 27708.



Reproducibility Package: A memo describing the historical data, coding procedures, and analytic workflow used in this study is available here: https://osf.io/hdfp6/overview.

  • Citation: Cheng, Tony, and Johann Koehler. 2026. “Making Progress in the Chicago Police Department, 1862–2024” Sociological Science 13: 408-440.
  • Received: January 7, 2026
  • Accepted: February 17, 2026
  • Editors: Ari Adut, Kristen Schilt
  • DOI: 10.15195/v13.a17


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Life in a Crime Scene: Stop, Question, and Frisk Activity in New York City Neighborhoods in the Aftermath of Homicides

Johanna Lacoe, Patrick Sharkey

Sociological Science, February 24, 2016
DOI 10.15195/v3.a7


An incident of extreme violence, such as a homicide, disrupts daily life not only through the incident itself but also through the chaos and disruption that emerge in the aftermath of violence. This article presents descriptive evidence about how communities are affected by increased police activity—specifically, stop, question, and frisk (SQF) activity—following an incident of extreme violence. Our results show that SQF activity in a block group increases in the week following a homicide in New York City, with the largest increases in neighborhoods with high crime rates. Furthermore, neighborhoods with different racial and ethnic compositions have differential levels of average SQF activity and also experience differential responses from the police in the aftermath of a homicide. African American residents have a higher probability of being stopped following a homicide than do nonblack residents across neighborhoods of all types.

Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 4.0 International License.

Johanna Lacoe: Mathematica Policy Research  Email: jlacoe@mathematica-mpr.com

Patrick Sharkey: New York University Email: pts1@nyu.edu

  • Citation: Lacoe, Johanna and Patrick Sharkey. 2016. “Life in a Crime Scene: Stop, Question, and Frisk Activity in New York City Neighborhoods in the Aftermath of Homicides.” Sociological Science 3: 116-134.
  • Received: September 11, 2015.
  • Accepted: December 3, 2015.
  • Editors: Jesper Sørensen, Stephen Morgan
  • DOI: 10.15195/v3.a7

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