Illinois SB 4070: CTA POLICE DEPARTMENT

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104TH GENERAL ASSEMBLY 
State of Illinois 
2025 and 2026
SB4070

Introduced 2/24/2026, by Sen. Willie Preston 

SYNOPSIS AS INTRODUCED:

70 ILCS 3605/27b new

 Amends the Metropolitan Transit Authority Act. Provides that the Chicago Transit Authority shall establish the CTA Transit Police Department composed solely of sworn law-enforcement officers. Provides that all security functions shall be performed exclusively by officers of the CTA Transit Police Department. Provides that the CTA Transit Police Department shall deploy 3-officer safety teams moving continuously through trains, stations, and buses, with priority given to high-crime locations. Provides that the Authority shall implement a pilot program deploying AI-based weapon-detection scanners in at least 5 and not more than 10 high-crime stations and major bus hubs. Provides that the Authority shall implement a limited facial recognition pilot program restricted to identifying individuals (i) with active violent-felony warrants or (ii) who the Authority has prohibited from accessing services provided by the Authority. Effective immediately.

LRB104 20798 RTM 34316 b

A BILL FOR

SB4070LRB104 20798 RTM 34316 b

1 AN ACT concerning local government.

2 Be it enacted by the People of the State of Illinois, 

3represented in the General Assembly:

4 Section 1. Findings and purpose. 

5 (a) The General Assembly finds and declares that:

6 (1) The Chicago Transit Authority is the 

7 second-largest public transit agency in the United States 

8 and operates a 24-hour rail and bus system serving 

9 hundreds of thousands of riders daily.

10 (2) The Chicago Transit Authority currently uses 

11 AI-assisted gun-detecting camera software that is 

12 primarily reactive and insufficie