IL SB1655

Amends the Juvenile Court Act of 1987 to establish fitness to stand trial standards specifically for minors, recognizing that unfitness may result from mental illness, developmental disability, substance use disorder, chronological immaturity, relative immaturity, child traumatic stress, or a combination of these conditions

Requires fitness evaluations to be conducted by licensed clinical psychologists or psychiatrists with training in forensics, child development, and child trauma, with evaluations completed within 30 days and conducted in the least restrictive environment

Sets maximum periods for services to attain fitness: one year for felonies and no longer than the potential sentence (or one year, whichever is shorter) for misdemeanors, with possible extensions for first degree murder and Class X felonies through safety hearings

Applies a higher burden of proof for minors under age 14, requiring the State to prove fitness by clear and convincing evidence rather than preponderance of the evidence

Mandates dismissal of charges with prejudice if a minor cannot attain fitness within the statutory period and requires the Illinois Juvenile Justice Commission to submit data collection recommendations to the General Assembly by January 1, 2026