The act of an individual leaving prison (parole/special sentence, work release, or discharge) who is then reincarcerated within three years for any reason. The report fiscal year includes those individuals whose three year period ended within the fiscal year identified (July 1 - June 30, labeled after the calendar year in which it ends).
There are a number of potential explanations for the variance in recidivism percentages. Many are policy decisions, such as types of individuals sentenced to prison, how offenders are selected for release, the length of stay under supervision, and decisions about how to respond to violations of supervision.