HELP US END MASS INCARCERATION The Prison Policy Initiative uses research, advocacy, and organizing to dismantle mass incarceration. We’ve been in this movement for 22 years, thanks to individual donors like you.

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Peter Wagner, Executive Director
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Graph showing that technical violations of the rules of both probation and parole — not new crimes — are the leading reasons people do not succeed on probation or parole.

Data Source: See "Data sources" section of full report. (Graph: Wendy Sawyer & Peter Wagner, 2023)

This graph originally appeared in Mass Incarceration: The Whole Pie 2023.

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