The Chicago Police Department spent a record $116.1 million on overtime in 2015 — up 17.2 percent from the previous year — to mask a manpower shortage that has mushroomed under Mayor Rahm Emanuel, with police retirements outpacing hiring by 975 officers.
A Chicago Sun-Times report says the traditional summer surge in street violence triggered the highest monthly spending, with $16.8 million in overtime in August 2015.