A computer error in California prompted prison officials to release 450 inmates with “a high risk for violence” according to a report in the Los Angeles Times. The report also says that more than 1,000 additional prisoners presenting a high risk of drug crimes, property crimes and other offenses were also let out.

No attempt was made by prison officials to return the offenders to state lockups or place them on supervised parole, as all of the prisoners were placed on “non-revocable parole”.