PDF A Matter of Time: The Causes and Consequences of Rising Time Served in America’s Prisons
People are spending more time in prison, and the longest prison terms are getting longer.
To better understand long prison terms, the authors of this report took a new approach to measuring how much time people spend in US prisons. They looked at annual snapshots of prison populations to see how long people had been in prison so far and compared those snapshots over time. This allowed them to include time served by people who are usually overlooked by more traditional methods.
Any amount of time spent in prison can feel long, but some terms are truly extreme. Because state policies greatly influence sentencing and release, we looked at the top 10 percent of people serving the longest prison terms in each state. We also tracked changes among people serving terms of 10 years or more. By either measure, the longest prison terms have been growing in both length and number.