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.

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Some of the most recently added reports are:

Monday, June 5 2017:

  • Supervision in the Community: Probation and Parole, [PDF] Michelle S. Phelps and Caitlin Curry, University of Minnesota. April, 2017. "In the United States, the number of adults on probation and parole supervision increased from one million in 1980 to a peak of nearly 5.1 million in 2007, more than double the number of inmates in local, state, and federal jails and prisons."

Friday, June 2 2017:

  • Drawing Blood from Stones: Legal Debt and Social Inequality in the Contemporary United States, [PDF] Alexes Harris, Heather Evans, and Katherine Beckett, University of Washington. May, 2010. "[F]indings suggest that monetary sanctions create long-term legal debt and significantly extend punishment’s effects over time."

Thursday, June 1 2017:

  • Evaluating the Role of Race in Criminal Justice Adjudications in Delaware [PDF] John M. MacDonald and Ellen A. Donnelly, University of Pennsylvania. September, 2016. "African American-White disparities in incarceration sentences are largely explained by differences in most serious of arrest charge, type of arrest charge, detention between arrest and final disposition, and county location."
  • Era of Mass Expansion: Why State Officials Should Fight Jail Growth, [Website] Prison Policy Initiative. May, 2017. "In most states over the last three decades, the number of people in jails has outpaced population growth by 2, 3 or even 4 times. In 12 states, the jail population has grown more than 3 times faster than the general population."
  • Using Time to Reduce Crime: Federal Prisoner Survey Results Show Ways to Reduce Recidivism, [PDF] Families Against Mandatory Minimums. May, 2017. "An estimated 45 percent of federal prisoners have mental health and behavioral problems...Two-thirds of prisoners who responded to our survey said they had not received mental or behavioral health counseling while in federal prison."

Friday, May 26 2017:

  • The Price of Prisons: Examining State Spending Trends, 2010-2015, [PDF] Vera Institute of Justice. May, 2017. "Since 2010, 23 states have reduced the size of their prison populations. Vera’s research found that 13 of these states have saved considerably in taxpayer money — $1.6 billion — at the same time."
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