Ojmarrh Mitchell
Biography
Ojmarrh Mitchell, Ph.D., is Professor in the Department of Criminology, Law and Society at the University of California, Irvine. Mitchell's research focuses on racial and ethnic disparities in criminal justice processing and outcomes, with particular attention to drug enforcement, sentencing, and prosecutorial decision-making. He has examined these issues through meta-analyses, systematic reviews, and analyses of large-scale administrative data from multiple jurisdictions.
Mitchell serves as Editor of Criminology & Public Policy and recently served as Vice President of the American Society of Criminology. He has also served as an elected member of the Science Advisory Board for the U.S. Department of Justice, Office of Justice Programs, and on the Committee on Cybercrime Classification and Measurement for the National Academies of Sciences, Engineering, and Medicine. Mitchell has received the W.E.B. Du Bois Award from the Western Society of Criminology and the Julius Debro Award from the American Society of Criminology's Division of People of Color and Crime.
Mitchell has been awarded four grants from the National Institute of Justice, including two W.E.B. Du Bois Fellowships. His research has been published in journals including Criminology & Public Policy, Journal of Quantitative Criminology, Justice Quarterly, and Journal of Research in Crime & Delinquency. Mitchell received his Ph.D. in Criminology and Criminal Justice from the University of Maryland in 2003, with a doctoral minor in Measurement, Statistics and Evaluation.
Return to topEducation
- Ph.D. in Criminology and Criminal Justice, University of Maryland, 2003
- Doctoral Minor in Measurement, Statistics and Evaluation, University of Maryland, 2003
- M.A. in Criminology and Criminal Justice, University of Maryland, 1999
- B.A. in Sociology, University of Washington, 1996
Distinctions
- Science Advisory Board Member, U.S. Department of Justice, Office of Justice Programs
- Member of the Committee on Cybercrime Classification and Measurement, National Academies of Sciences, Engineering, and Medicine
- Editor, Criminology & Public Policy, 2023
- Criminology & Public Policy's 2024 Late-Career Paper of the Year Award, 2024
- American Society of Criminology, Division of People of Color and Crime, Julius Debro Award, 2021
- Executive Counselor, American Society of Criminology, 2019-2022
- Vice President, American Society of Criminology, 2023
- Editor, The Criminologist, 2025
- Western Society of Criminology, W.E.B. Du Bois Award, 2022
- University of South Florida, Department of Criminology, Distinguished Service Award, 2017
Areas of Expertise
- Criminal Justice Policy
- Racial Sentencing Disparities
- Drug Court Effectiveness
- Incarceration-Based Treatment Programs
- Progressive Prosecutor Impact
- Pretrial Detention Outcomes
- Police Bicycle Stop Practices
Recent Publications
- Oramas Mora D., Mitchell O., Spohn C., “Rethinking Drug Prosecution: The Impact of Progressive Prosecutors on Outcomes and Disparities” (opens in new tab), Crime and Delinquency, 2026.
- Ojmarrh Mitchell, Nick Petersen, “The Rise of Progressive Prosecutors in the United States: Politics, Prospects, and Perils” (opens in new tab), Annual Review of Criminology, vol. 8, pp. 459-84, 2025.
- Daniela Oramas Mora, Ojmarrh Mitchell, Cassia Spohn, “Does variation across judicial circuits matter? Examining the role of bail schedules and pretrial detention on drug case outcomes in Florida” (opens in new tab), Journal of Criminal Justice, vol. 99, pp. 102464, 2025.
- Nick Petersen, Ojmarrh Mitchell, Shi Yan, “Do Progressive Prosecutors Increase Crime? A Quasi-Experimental Analysis of Crime Rates in the Largest Counties, 2000-2020” (opens in new tab), Criminology and Public Policy, vol. 23, no. 2, pp. 459-90, 2024.
- Ojmarrh Mitchell, Shi Yan, Daniela Oramas Mora, “Trends in Prison Sentences and Racial Disparities: 20-Years of Sentencing Under Florida's Criminal Punishment Code” (opens in new tab), Journal of Research in Crime and Delinquency, vol. 60, no. 2, pp. 300-338, 2023.
- Rachel Bowman, Daniela Oramas Mora, Ojmarrh Mitchell, Cassia Spohn, “Gender in the courtroom workgroup: Understanding the relationship between the composition of workgroups and the gender gap in punishment” (opens in new tab), Criminal Justice and Behavior, vol. 50, no. 3, pp. 410-428, 2023.
- Ojmarrh Mitchell, Daniela Oramas Mora, Tracey Sticco, Lyndsay N. Boggess, “Are Progressive Chief Prosecutors Effective in Reducing Prison Use and Cumulative Racial/Ethnic Disparities? Evidence from Florida” (opens in new tab), Criminology and Public Policy, vol. 21, no. 3, pp. 535-565, 2022.
- Cora H. Ormseth, Alyssa C. Mooney, Ojmarrh Mitchell, Renee Y. Hsia, “Association of Residential Racial and Ethnic Segregation with Legal Intervention Injuries in California” (opens in new tab), JAMA Network Open, vol. 5, no. 6, pp. 1-12, 2022.
- Lyndsay N. Boggess, Ojmarrh Mitchell, Tracey Sticco, Rachel Bowman, Daniela Oramas Mora, “Understanding Prosecutorial Discretion in Florida Felony Courts. (Final Report to the National Institute of Justice)”, University of South Florida, 2022.
- Ahlin E.M., Mitchell O., Atkin-Plunk C.A., “HANDBOOK ON INEQUALITIES IN SENTENCING AND CORRECTIONS AMONG MARGINALIZED POPULATIONS” (opens in new tab), Handbook on Inequalities in Sentencing and Corrections Among Marginalized Populations, pp. 1-276, 2022.
- Ojmarrh Mitchell, “Tokenism in Criminology and Criminal Justice Departments: Problems and Solutions” (opens in new tab), Race and Justice, vol. 11, no. 3, pp. 338-46, 2021.
Most Cited Publications
- Ojmarrh Mitchell, “A Meta-Analysis of Race and Sentencing Research: Explaining the Inconsistencies” (opens in new tab), Journal of Quantitative Criminology, vol. 21, no. 4, pp. 439-466, 2005.
- Ojmarrh Mitchell, David B. Wilson, Amy Eggers, Doris L. MacKenzie, “Assessing the Effectiveness of Drug Courts on Recidivism: A Meta-Analytic Review of Traditional and Non-Traditional Drug Courts” (opens in new tab), Journal of Criminal Justice, vol. 40, pp. 60-71, 2012.
- David B. Wilson, Ojmarrh Mitchell, Doris L. MacKenzie, “A Systematic Review of Drug Court Effects on Recidivism” (opens in new tab), Journal of Experimental Criminology, vol. 2, no. 4, pp. 459-487, 2006.
- Ojmarrh Mitchell, Michael Caudy, “Examining Racial Disparities in Drug Arrests” (opens in new tab), Justice Quarterly, vol. 32, no. 2, pp. 288-313, 2015.
- Ojmarrh Mitchell, David B. Wilson, Doris L. MacKenzie, “Does Incarceration-Based Drug Treatment Reduce Recidivism? A Meta-Analytic Synthesis of the Research” (opens in new tab), Journal of Experimental Criminology, vol. 4, pp. 353-375, 2007.
- Terance D. Miethe, Jodi Olson, Ojmarrh Mitchell, “Specialization and Persistence in the Arrest Histories of Sex Offenders: A Comparative Analysis of Alternative Measures and Offense Types” (opens in new tab), Journal of Research in Crime and Delinquency, vol. 43, no. 3, pp. 204-229, 2006.
- Ojmarrh Mitchell, Michael Caudy, “Race Differences in Drug Offending and Drug Distribution Arrests” (opens in new tab), Crime and Delinquency, vol. 63, no. 2, pp. 91-112, 2017.
- Ojmarrh Mitchell, Doris Layton MacKenzie, “The Stability and Resiliency of Self-Control in a Sample of Incarcerated Offenders” (opens in new tab), Crime and Delinquency, vol. 52, no. 3, pp. 432-449, 2006.
- Ojmarrh Mitchell, Doris Layton Mackenzie, Gaylene Styve, Angela Gover, “The Impact of Individual, Organizational, and Environmental Attributes on Voluntary Turnover among Juvenile Correctional Staff Members” (opens in new tab), Justice Quarterly, vol. 17, no. 2, pp. 333-357, 2000.
This profile was created with the help of AI.
Last updated on 7/1/2026.