The data shows that 17 men and three women were released in Alton zip code. The median age of the parolees was 34. The youngest parolee was a 21-year-old man convicted of a property crime in 2018, and the oldest was a 54-year-old man convicted of a financial crime or fraud in 2019.
The offender who had been incarcerated the longest was Douglas Peterson. He was convicted of a property crime in 1980, when he was 0 years old. He is now 40.
Under state law, paroled offenders are still in legal custody of the IDOC, meaning they can be taken back to a correctional center at any time if the state has probable cause or a warrant.
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