Overview
- The Cook County State's Attorney's Office and the Chicago Transit Authority began placing more than 7,000 warning signs on CTA vehicles after a joint announcement on Tuesday, July 28, 2026.
- The signs state that the state's attorney will prosecute violent offenses on CTA property and will seek pretrial detention under a detention policy the office announced when Eileen O'Neill Burke took office.
- Since December 1, 2024, the state's attorney's office says it approved felony charges in 483 transit-related cases and obtained pretrial detention in 83% of those prosecutions.
- Officials describe the signage as one part of a wider strategy that includes a Regional Transit Task Force launched in May 2026, added CPD and Cook County sheriff patrols, embedded First Appearance investigators, and training for prosecutors on using transit video evidence.
- Local critics and a law-enforcement blog argue signs alone may not deter offenders and point to concerns about quick releases under existing policies as a limit on the campaign's practical effect.