In 1999, 18 percent of releases were unconditional-individuals were released to the community under no supervision and without any conditions attached to their release. ^[1]   The percentage of people released unconditionally has nearly doubled since 1990: more than 100,000 individuals, including high-risk prisoners, are now released unconditionally each year. ^[2]   After their release, these prisoners have no additional obligations to report to a parole officer, to participate in programming, or to abide by other conditions of release. Nationally, very little is known about the behavior and recidivism rates of prisoners released who are under criminal justice supervision compared with those who are not and about how the length of time a person spends on supervision corresponds to recidivism. The vast majority of jail inmates is released without supervision.