October, 4

BJS Releases Survey of Prison Inmates Data Analysis Tool (SPI DAT)

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BJS Releases Survey of Prison Inmates Data Analysis Tool (SPI DAT)

The Bureau of Justice Statistics, in the Department of Justice’s Office of Justice Programs, today released the Survey of Prison Inmates Data Analysis Tool (SPI DAT). This new dynamic analysis tool modernizes public access to data from the most recent Survey of Prison Inmates (SPI, 2016) through interactive data visualizations.

This online tool provides unprecedented ease of access to a range of characteristics of the U.S. prison population and allows users of all technical skill levels to readily analyze data from the 2016 SPI, view selected charts, and create custom charts for specific characteristics for persons held in federal prisons, state prisons, and all U.S. prisons. Users can view additional statistics through the chart tooltip, display or hide chart footnotes, and download results for all data visualizations.

Conducted periodically, the SPI collects data through personal interviews with a nationally representative sample of persons incarcerated in federal and state prisons.


Survey of Prison Inmates Data Analysis Tool (SPI DAT)


About the Bureau of Justice Statistics

The Bureau of Justice Statistics of the U.S. Department of Justice is the principal federal agency responsible for collecting, analyzing and disseminating reliable statistics on crime and criminal justice in the United States. Alexis R. Piquero, PhD, is the director. More information about BJS and criminal justice statistics can be found at

About the Office of Justice Programs

The Office of Justice Programs provides federal leadership, grants, training, technical assistance and other resources to improve the nation’s capacity to prevent and reduce crime, advance racial equity in the administration of justice, assist victims and enhance the rule of law. More information about OJP and its components can be found at


CONTACT: OJP Media at [email protected]

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