Illinois Collects Data On Traffic Stops, But The Law Is Set to Expire This Year

A 2004 Illinois law requiring officer documentation of every traffic stop is set to phase out this summer.  The data, which includes the driver’s race and outcome of each stop, has helped law enforcement agencies study deficiencies in their practices.

Rachel Murphy, staff attorney for the ACLU of Illinois, said the law — the Illinois Traffic and Pedestrian Stop Statistical Study Act — serves as a transparency tool for the public. “It really gives us a broader picture of all police interaction, which allow each law enforcement agency to really build that trust with their community when they can show what they’re doing, and either justify it or show that they’re committed to making improvements.”