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 23 years, thanks to individual donors like you.

Can you help us sustain this work?

Thank you,
Peter Wagner, Executive Director
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graph showing Maryland prison populaton, 1978 to 2012

Data Source: Bureau of Justice Statistics, Corrections Statistics Analysis Tool. (Graph: Peter Wagner, May 2014)

report thumbnailThis graph is a part of Tracking State Prison Growth, a Prison Policy Initiative briefing.

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