The Calumet City Police Department serves a population of 36,500 residents, strong in ethnic, racial, and cultural diversity. In addition to traditional patrol and investigative functions, the Calumet City Police Department has a great number of specialty assignments and collateral duties. Such assignments include: Field Training Officers, Evidence Technicians, Firearms Instructors, Detectives, Tactical Officers, School Resource Officers, SWAT Operators – South Suburban Emergency Response Team (SSERT), Investigators – South Suburban Major Crimes Task Force (SSMCTF), Investigators – Suburban Major Accident Reconstruction Team, Task Force Officer – Drug Enforcement Administration (DEA), and Task Force Officer – Drug Enforcement Agency (DEA) Chicago Strike Force.