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:

Tuesday, June 30 2015:

  • Was There a "Ferguson Effect" on Crime in St. Louis? [PDF] The Sentencing Project. June, 2015. "Only the timing of the change in property crimes is fully consistent with a Ferguson effect. But temporal consistency is not a sufficient condition to establish substantive proof."

Friday, June 26 2015:

  • Firearms and the incidence of arrest among respondents to domestic violence restraining orders, [PDF] Injury Epidemiology. 2015. "Respondents linked to firearms were older than others and were more likely to have a history of prior arrest. The incidence of arrest was 20.6 % for respondents linked to firearms and 21.1 % for others."
  • Reducing Racial and Ethnic Disparities in Jails: Recommendations for Local Practice, [PDF] Brennan Center for Justice. June, 2015. "Overuse of Pre-Trial Detention: Studies consistently find that African American and Hispanic defendants are more than twice as likely to be detained in jail pending trial."

Thursday, June 25 2015:

  • The Impact of Mass Incarceration on Poverty Crime and Delinquency. February, 2009. "From an empirical standpoint, the results from the current analysis are quite clear; mass incarceration has played a major role in increasing poverty rates."

Monday, June 22 2015:

  • Seven Out of Ten? Not Even Close., [PDF] Central Connecticut State University. March, 2015. (On average children with incarcerated parents were about three times as likely as non-children with incarcerated parents to become justice-involved, not nearly six times more likely.)
  • Deadly Force: Police Use of Lethal Force In The United States, [PDF] Amnesty International. June, 2015. (No one knows how many people are killed by police in the US, but estimates range from 400 to 1000 people each year. Yet not one state in the US complies with international human rights standards on the use of lethal force by police.)
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Meet us

  • July 7, 2015:
    Executive Director Peter Wagner will be speaking to Windsor DL about Ending Prison Gerrymandering in Connecticut at Windsor’s Union Street Tavern at 7:30pm. More info.
  • July 19-21, 2015:
    Executive Director Peter Wagner will be in Baltimore Maryland for a conference July 19-21. Contact us if you’d like to meet up or arrange another event while Peter is in town.
  • September 13, 2015:
    Peter Wagner will be speaking on a panel at New Haven Artspace’s conference on race, criminal justice, and artistic expression. The conference is Sept 12-13, and Peter’s panel will be on Sept 13.

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Events

  • July 7, 2015:
    Executive Director Peter Wagner will be speaking to Windsor DL about Ending Prison Gerrymandering in Connecticut at Windsor’s Union Street Tavern at 7:30pm. More info.
  • July 19-21, 2015:
    Executive Director Peter Wagner will be in Baltimore Maryland for a conference July 19-21. Contact us if you’d like to meet up or arrange another event while Peter is in town.
  • September 13, 2015:
    Peter Wagner will be speaking on a panel at New Haven Artspace’s conference on race, criminal justice, and artistic expression. The conference is Sept 12-13, and Peter’s panel will be on Sept 13.

Not near you?
Invite us to your city, college or organization.