Dr. Josy Hahn is a Senior Research Fellow and social epidemiologist at the Brennan Center’s Justice Program, where she works closely with the rest of the Justice team to implement rigorous research and racial equity approaches in the criminal legal system.
Previously, Dr. Hahn was a Research Director of Racial Equity and Fairness at the NYC Mayor’s Office of Criminal Justice. Here, she led an innovative portfolio launching officewide racial equity work, examining racial disparities in neighborhood health and the criminal legal system, and partnering with racial equity initiatives, such as the Mayor’s Action Plan for Neighborhood Safety and the Office to Prevent Gun Violence.
Prior to that, Dr. Hahn led numerous mixed methods studies and reports at the Center for Court Innovation and the Vera Institute of Justice, examining system and community responses to alternatives to enforcement, restorative justice, gender-based violence, and neighborhood safety. Earlier in her career, she was a middle school history teacher at the Horace Mann School and worked with youth and families involved in the criminal legal system.
Dr. Hahn holds a B.A. from Princeton University, an M.P.H. from the University of Medicine and Dentistry of New Jersey in Newark, and a Doctor of Science from the Harvard School of Public Health.
Fostering community, sharing power: Lessons for building restorative justice school cultures, Education Policy Analysis Archives, November 2019
School Discipline, Safety, and Climate: A Comprehensive Study in New York, Center for Court Innovation, October 2019
Office to Prevent Gun Violence Theory of Change, NYC Mayor’s Office of Criminal Justice, 2019
What Do Defendants Really Think?, Center for Court Innovation, Center for Court Innovation, September 2018
Two-Year Update: Brooklyn Justice Initiatives Supervised Release Program, Center for Court Innovation, March 2017
An Experiment in Bail Reform: Examining the Impact of the Brooklyn Supervised Release Program, Center for Court Innovation, February 2016
New York State Mental Health Courts: A Policy Study, Center for Court Innovation, December 2015
Predictors of Mental Health Court Program Compliance and Rearrest in Brooklyn, New York, Center for Court Innovation, July 2015
Examining the Association between Posttraumatic Stress Disorder and Intimate Partner Violence, Journal of Family Violence, April 2015
Examining the impact of disability status on intimate partner violence victimization in a population sample, Journal of Interpersonal Violence, May 2014
Community Perceptions of Newark: Neighborhood Quality of Life, Safety, and the Justice System, Center for Court Innovation, February 2014
Mental Health and Juvenile Justice: An Impact Evaluation of a Community-Based Intervention in Queens, New York, Center for Court Innovation, August 2013