A portrait of Peter Wagner.
Peter Wagner
Executive Director
I need your help. The Prison Policy Initiative is at the forefront of the movement for criminal justice reform. We’ve protected our democracy from the prison system and the poorest families in this country from the predatory prison telephone industry. And our timely and accessible reports recruit new and stronger allies to our movement.

But
our long-term viability depends on people like you investing in our work.

Can you stand up for smart and effective criminal justice policy with a gift today?

I thank you for investing in our work towards a more just tomorrow.
—Peter Wagner
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Research Clearinghouse:

Beyond producing original research, the Prison Policy Initiative edits several databases to empower activists, journalists, and policymakers to shape effective criminal justice policy. This page contains links to virtually all the empirical criminal justice research available online, organized by category and publication date. If you know what you are looking for, you may also search the database. We also have an email newsletter (at right) for new research clearinghouse updates.


Can't find what you are looking for?

Enter one word from the title, author or topic to search the clearinghouse:

Advanced search options and entire database by the date added.

word cloud of search terms

Some of the most recently added reports are:

Friday, May 27 2016:

  • Justice in Review: New Trends in State Sentencing and Corrections 2014-2015, Vera Institute of Justice. May, 2016. "In 2014 and 2015, 46 states enacted at least 201 bills, executive orders and ballot initiatives to reform at least one aspect of their sentencing and corrections systems."

Thursday, May 26 2016:

  • Corrections Statistics by State [Website] National Institute of Corrections. February, 2015. "This unique compilation of data provides a visual representation of key statistics for each state as well as a comparison of each state in relation to other states."

Wednesday, May 25 2016:

  • Study of the TDCJ Offender Visitation Policies Texas Department of Criminal Justice. August, 2014. "A temporary online survey was conducted from November 2013 to March 2014 to obtain feedback from the public regarding their past visitation experience."

Monday, May 23 2016:

  • By the Numbers: Parole Release and Revocation Across 50 States, Robina Institute. April, 2016. "The Data Profiles in this report are designed to provide a statistical snapshot of the relationships and movements between prison and parole supervision populations in each state."

Thursday, May 19 2016:

  • Is Downsizing Prisons Dangerous? The Effect of California's Realignment Act on Public Safety, Criminology and Public Policy. May, 2016. "Significant reductions in the size of prison populations are possible without endangering public safety."
  • Protecting Written Family Communication in Jails: A 50-State Survey, Prison Policy Initiative. May, 2016. "[W]e find a strong correlation between the states that have strong language protecting letter writing and the states in which no jails are experimenting with banning letters."
  • Assessing the Impact of South Dakota's Sentencing Reforms Urban Institute. May, 2016. "South Dakota’s presumptive probation policy and felony reclassifications played a significant role in averting South Dakota’s prison population growth."

Wednesday, May 18 2016:

  • A Price Too High: US Families Torn Apart by Deportations for Drug Offenses, Human Rights Watch. June, 2015. "[T]he US is deporting a significant number of both permanent residents and undocumented individuals with strong family and community ties to the US, often for minor or old drug offenses."
  • The Heavy Costs of High Bail: Evidence from Judge Randomization, Columbia Law School. May, 2016. "Our estimates suggest that the assignment of money bail causes a 6 percentage point rise in the likelihood of pleading guilty, and a 4 percentage point rise in recidivism."
  • Breaking Promises: Violations of the Massachusetts Pregnancy Standards & Anti-Shackling Law, The Prison Birth Project and Prisoners' Legal Services of Massachusetts. May, 2016. "Far too often Massachusetts prisons and jails violate the law in both policy and practice, undermining the public will and subjecting pregnant women to illegal, unsafe, and degrading treatment."
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Events

  • September 21, 2016:
    Executive Director Peter Wagner will be speaking at Claremont McKenna College in California. Details TBA.

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