Restrictive Sentencing Drives Michigan Prison Growth Despite Stable Crime Rates, New CJI Report Finds
New Crime and Justice Institute report reveals long prison sentences, consecutive terms, and enhancements are fueling Michigan’s rising prison population despite steady crime rates.
The Crime and Justice Institute (CJI), with support from Arnold Ventures, has released Staying Too Long: Michigan’s Stalled Sentencing Reform, a report analyzing Michigan’s prison population trends and sentencing practices, revealing that restrictive sentencing policies are driving the state’s prison growth even as crime rates remain steady.
Summary
Over 65% of Michigan’s incarcerated population is serving sentences of ten years or more, often with limited opportunity for review or reduction. Policies such as consecutive sentences, sentence stacking, and habitual offender enhancements keep people behind bars far longer than research shows is necessary for public safety.
These trends are contributing to an aging prison population, rising corrections costs, and disproportionate outcomes for certain communities.
Michigan has the data and tools to advance evidence-based sentencing reform, but without deliberate action, the state risks prolonging unnecessarily long prison stays,” said Len Engel, Esq., CJI Director of Policy & Campaigns.
Key Findings
- Population growth: Michigan’s prison population is up 3% since 2021 after decades of decline, with more individuals receiving additional sentences while already incarcerated.
- Longer sentences: Average minimum terms have risen 30% over the past decade, from 9.3 years in 2014 to 12 years in 2023.
- Drug offenses: Minimum terms for drug offenses grew 33% in the past ten years.
- Exceeding statutory maximums: Minimum terms for top offenses frequently surpass statutory maximums indicating the impacts of consecutive sentences, sentence stacking, and habitual offender enhancements.
Policy Recommendations for Michigan
To advance sentencing reform, CJI recommends:
- Leverage the Sentencing Commission to produce data-driven recommendations and corresponding legislation.
- Use corrections data to identify policies contributing to long stays, especially those related to enhancements, habitual offenders, and additional sentences on already incarcerated individuals.
- Analyze the fiscal impact of long sentences in light of budget volatility and an aging prison population.
- Reintroduce policies to reduce length of stay early in the 2026 legislative session, backed by fiscal and public safety data.
Why This Matters
With statewide elections and a new legislative session underway, this report provides critical context for policymakers, advocates, and practitioners considering evidence-based sentencing reform.
Although reforms like Clean Slate expansion, bail reform, and medical parole show Michigan’s capacity for change, long sentences and extended lengths of stay remain a pressing challenge.
Media Coverage
Bridge Michigan: Longer sentences push Michigan prisons closer to capacity
WOWO News/Talk: Michigan Prisons Near Capacity as Sentences Lengthen
Detroit Legal News: Report: Long Sentences Are Pushing Major Prison Population Growth
Read the Report / Subscribe / Contact
Read the full report: Staying Too Long: Michigan’s Stalled Sentencing Reform
Stay Informed: Subscribe to CJI’s quarterly newsletter, The Crime & Justice Insider.
Contact: For media inquiries or to discuss the report, reach out to cjiconnect@cjinstitute.org.