IL SB1858

Eliminates mandatory sentences of natural life imprisonment for individuals convicted of serious offenses (aggravated kidnapping, criminal sexual assault, predatory criminal sexual assault of a child, terrorism, ritualized abuse) when they were under 18 years of age at the time of commission.

Allows individuals under 18 at the time of offense to petition for resentencing after serving 15 years of a life or 40+ year sentence, with eligibility for subsequent motions every 10-20 years and again at age 60.

Requires courts to consider 11 specific mitigating factors when sentencing individuals under 18, including age, maturity, family background, susceptibility to peer pressure, rehabilitation potential, and circumstances of the offense.

Provides resentencing procedures including victim notification, opportunity for victim impact statements, court consideration of evidence and post-incarceration records, and detailed written findings by the judge.

Requires the Illinois Juvenile Justice Commission to present evidence-based findings on sentencing minors as adults within one year of the law's effective date.