Profiled: The State of Traffic Stops in Illinois

For more than two decades, Illinois has required police to record details about every traffic stop throughout the state — including the race of the driver, the reason for the stop and the outcome. WBEZ, in partnership with the Investigative Project on Race and Equity, has compiled tens of millions of records and found that racial disparities are widening, police compliance is falling, and the state has done little to reverse the trend.