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 24 years, thanks to individual donors like you.

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Thank you,
Peter Wagner, Executive Director
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Venn diagram showing the overlaps and differences between the criminal legal system and prison disciplinary systems.

(Graph: Wendy Sawyer, 2025)

This graph originally appeared in Bad Behavior: How prison disciplinary policies manufacture misconduct.

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