Jan 2025
Transforming Criminal Justice Responses to Substance Use: Impacts on Crime, Housing, and Health Outcomes
This paper evaluates the impact of diverting individuals who possess drugs away from arrest and into substance use treatment in Chicago between 2010-2022.
Drug overdose deaths in the U.S. reached a record high of 107,941 in 2022, three quarters of which involved opioids. In response to the scale of the epidemic, hundreds of police departments across the country have begun to divert individuals who possess drugs away from arrest and into substance use treatment. This paper evaluates the impact of this approach using arrest-level variation in diversion eligibility in Chicago between 2010-22 in a triple difference framework. We find that drug arrest diversion primarily reached individuals who used narcotics every day, increased connections with substance use treatment, and reduced subsequent arrests, including arrests for violent offenses, but had no discernible impact on fatal or non-fatal overdose risk.

Agent-Based Model of Combined Community- and Jail-Based Take-Home Naloxone Distribution
This paper outlines the impact and cost-effectiveness of naloxone distribution, particularly for people facing criminal justice involvement.

Empirical Analysis of Prediction Mistakes in New York City Pretrial Data

Brookings Institution Commentary: Making the invisible epidemic visible
Using new data from a large urban trauma center in Chicago, we document substantial under-reporting of domestic violence at the time of receiving medical care.

Video about the Narcotics Arrest Diversion Program
This video provides an overview of the Crime Lab’s evaluation of the Narcotics Arrest Diversion Program, a program implemented by the community behavioral health provider Thresholds.
Latest Updates
Deaths of decision-making are killing American teens. Schools can fix it.
Crime Lab executive director Katie Hill pens an op-ed for Brookings about how cognitive behavioral programs can teach teens decision-making skills that can dramatically reduce violence and save lives – often at little or no additional cost.

Kelly Leonard: How improv can help police do their job
Kelly Leonard joins WGN’s John Williams to discuss The Second City’s partnership with the Crime Lab’s Policing Leadership Academy that’s using improv to help officers improve their communication skills.

Novel approaches can chip away at gun violence, and make a big difference
In an op-ed for the Chicago Sun-Times, Crime Lab Pritzker Director Jens Ludwig argues that when it comes to gun violence, we’ve been focused on the wrong solutions – a key insight from his new book, “Unforgiving Places: The Unexpected Origins of American Gun Violence.”
