Research Library
Our mission is to empower activists, journalists, and policymakers to shape effective criminal justice policy, so we go beyond our original reports and analyses to curate a database of virtually all the empirical criminal justice
research available online.
Tips: If you know what you are looking for, you may also search the database. We also have an email newsletter (at right)(at bottom) for new research library updates.
- COVID-19 (80) Research on the pandemic’s impact on prisons and jails
- Community impact (106) Research on the impact of the criminal legal system on housing, schools, employment, neighborhoods, and more
- Conditions of confinement (270) Research on prison and jail conditions such as solitary confinement, labor, discipline, food, and more
- Courts and trials (164) Research on prosecutors, judges, public defense, court caseloads, and more
- Crime (284) Curated research on crime, crime rates, and victimization
- Death penalty (154) Information and data on capital punishment and executions
- Disability (31) Research on the prevalence of, and challenges faced by, people with disabilities in the criminal legal system
- Drug policy and treatment (177) Research on punishing and treating drug use in the criminal legal system
- Economics of incarceration (179) Research on the economic drivers and consequences of mass incarceration
- Education (134) Curated research on education programs in prisons and the school-to-prison pipeline
- Families (156) Information and data on the criminal legal system’s impacts on families
- Felony disenfranchisement and voting rights (92) Information about laws barring people from the polls because of criminal convictions
- General (165) Broad-based research and information about the criminal legal system
- Gun control (45) Information and data about gun violence, firearms, and gun control policy
- Health and healthcare (209) Research on access to healthcare, chronic and infectious disease, mortality, and more
- Immigration (72) Research on the incarceration and detainment of immigrants
- Incarceration rates and trends (337) Research documenting the growth of prison and jail populations
- International incarceration (45) Curated research on incarceration trends worldwide, and how they compare to the U.S.
- Jails (287) Research on jail populations, jail conditions, jail construction, and more
- LGBTQ (26) Information and data on the mass criminalization and incarceration of LGBTQ+ people
- Mental health (88) Research on the prevalence and treatment of mental illness in the criminal legal system
- Policing (272) Information and data on arrests, traffic stops, law enforcement interactions, and more
- Poverty and wealth (158) Research on fines, fees, debt, and the criminalization of poor people
- Pretrial detention (127) Research on the costs and outcomes of detaining people before trial
- Prison gerrymandering (20) Research on prison-based gerrymandering (see also www.prisonersofthecensus.org)
- Privatization (104) Information and data on how private companies exploit incarcerated people and their families
- Probation and parole (126) Information about community supervision policies, conditions, violations, and more
- Public opinion (50) Research on public perceptions of crime, prison, reform, and more
- Racial and ethnic disparities (183) Research and statistics on racial and ethnic disparities in the criminal legal system
- Reentry and recidivism (248) Information and research on the challenges and outcomes for people released from incarceration, including collateral consequences
- Sentencing policy (142) Research on the rise and impact of excessive criminal sentences
- Sex-related convictions (17) Research about the unique punishment of sex-related crimes through registries, civil commitment, and other means
- Women and gender (142) Information and data on gender disparities in the criminal legal system
- Youth and juvenile justice (399) Research about youth in the criminal legal system
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Some of the most recently added reports are:
Friday, April 4 2025:
- Slavery Revisited in Penal Plantation Labor,
Andrea C. Armstrong.
April, 2012.
"Most types of prison labor will approximate conditions of involuntary servitude [thus] permissible under the convict-labor exception of the Thirteenth Amendment...Other types of labor, however, may approximate conditions of slavery."
- Parental Prisoners: The Incarcerated Mother's Constitutional Right to Parent,
Emily Halter.
July, 2018.
"While the Supreme Court has chipped away at the rights of prisoners in other areas, finding that many rights are forfeited at the prison doors, it has never ruled on the status of parental rights during incarceration."
- Impediments to Reproductive Justice: The Criminal Legal System and American Carceral State,
Harvard Law Review.
June, 2024.
"Until there is a reckoning with how criminal law relates to and affects reproductive rights, legal advocates for abortion cannot fully realize reproductive justice."
- Duration in Immigration Detention and Health Harms,
Altaf Saadi et al.
January, 2025.
"Detention periods of 6 months or more [were] associated with higher rates of self-rated poor health, mental illness, and PTSD compared with those detained less than 6 months.."
- Expanding Alternatives to Incarceration in NYC: A Pathway to Safely Closing Rikers Island,
New York City Alternatives to Incarceration (ATI) and Reentry Coalition.
January, 2025.
"Expanded application of ATls alone will not fully decarcerate Rikers. The City must also...fully implement its 6-A Work Release program and empower the Local Conditional Release Commission to use their authority to release eligible individuals."
- Four Decades of Law Enforcement in New York State: Changing Arrest, Prosecution, and Sentencing Trends, 1980-2023,
Data Collaborative for Justice.
December, 2024.
"After adjusting for population declines outside NYC, misdemeanor arrest rates per 100,000 people in the suburbs and upstate increased from 1980 to 1990 and then declined throughout nearly all of the remaining 34 years examined."
- Toward Safety, Liberty, and Equity: A Community-Centered Framework for Redesigning Minnesota's Pretrial System,
Minnesota Justice Research Center.
February, 2025.
"On average, people spend longer in jail pretrial in Greater Minnesota, particularly in counties that overlap with or border Minnesota's tribal nations."
- The Public Harm Under a For-Profit Probation System: Spotlight on Augusta,
Georgia Budget and Policy Institute.
December, 2024.
"Metro Augusta has some of the state's highest concentrations of Georgians with low incomes. For Georgians experiencing poverty, a private probation model provides few to no easy exits from misdemeanor probation supervision."
- A Call for Greater Compassion: How Pennsylvania's Compassionate Release Statute Reinforces Cruelty,
Abolitionist Law Center.
December, 2025.
"Altering the life expectancy requirements could make the statute less restrictive...Requiring merely that an individual be seriously ill, in tandem with proposing a release plan, would provide a far more effective, compassionate avenue of relief."
- The Labor Market for People with Conviction Histories: An Examination of Access to Good Jobs,
Vera Institute of Justice.
January, 2025.
"Findings from this study underscore the value of a bachelor's degree's flexibility, but also the ambiguous barriers people leaving prison with these credentials may have to navigate in seeking a job."
- Depressive Symptoms among Pregnant and Postpartum Women in Prison,
Mariann A. Howland et al.
July, 2021.
"More time remaining in prison after giving birth was associated with higher levels of postpartum depressive symptoms, after adjusting for depressive symptoms during pregnancy."