The Major Case Assistance Team (MCAT) is a multi-jurisdictional organization formed to provide investigative and forensic assistance to member police agencies during the investigation of homicides, serial crimes and major criminal events. The Major Case Assistance Team is comprised of police agencies from the following 14 police departments:
Brookfield
Countryside
Forest View
Hodgkins
Indian Head Park
LaGrange
LaGrange Park
Lyons
McCook
North Riverside
Riverside
Stickney