Corrections officials are alerting judges throughout Colorado that errors appear to have resulted in early, improper release dates from prison for hundreds of prisoners they sentenced.

The judges are reviewing the case files so they can decide which of those already released from incarceration should be returned to prison to serve out the longer sentences required by state law.

At least one case involved a parolee in El Paso County.

An audit is still underway by the Colorado Department of Corrections.

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