But the FOP, the union representing Chicago police officers, asked Cook County Chancery Court judge Peter Flynn to block the release of the records, contending that publication of the records would violate terms of its contract with the city. Flynn issued a preliminary injunction limiting release of the records to the last four years. The city has appealed, and the matter is currently before the appellate court, which has been fully briefed but has not yet scheduled oral arguments.



  The Citizens Police Data Project website provides the number of complaints against particular officers made in the last four years, and the investigative results, when known (typically sustained, not sustained, unfounded, or exonerated). The date, address, and nature of particular alleged misconducts are also provided. It’s a valuable tool for researchers, but the appellate court could make it far more valuable.