States That Slashed Their Prison Populations Have Seen Disproportionate Drops In Crime, Too

The United States still has the highest incarceration rate in the world, but those few states that managed to significantly reduce their prison population over the last decade saw benefits other than reduced lock-up costs. They also saw their crime rate go down at a higher rate than the national average, according to a new report from the Sentencing Project.

The report bolsters the notion that locking up the wrong people doesn't improve public safety. In fact, "smart on crime" policies not only minimize punishment toward non-violent offenders; they can also re-allocate resources toward violent crime.
"The experiences of New York, New Jersey, and California demonstrate that it is possible to achieve substantial reductions in mass incarceration without compromising public safety," wrote Marc Mauer and Nazgol Ghandnoosh of the Sentencing Project.

Proof that putting EVERYBODY in jail is not working (as if we needed proof)