The Illinois Criminal Justice Information Authority (ICJIA) is required by both Illinois state legislation (730 ILCS 210/3-5) and federal legislation (34 U.S.C. § 60105) to collect, report, and publish specific data on deaths that occur among individuals in the custody of Illinois local and state law enforcement agencies or as a result of an officer’s use of force. This report summarizes the relevant trends in Illinois in-custody deaths for the 2024 calendar year.