A little video on prison population flow dynamics

A helpful reader alerted me to this newly-posted video produced by SPAC, the Illinois Sentencing Policy Advisory Council.  This short animation is intended to help viewers understand how admissions and length of stay “interact and impact prison capacity flows.”  As explained to me via email, the video covers a relatively simple point in a relatively simple way, but should still helps explain important prison population concepts that many people struggle to fully appreciate.