Clearance Rate "Dips"
In Cook County, only about one third of murders since 1980 have been solved, according to a Scripps Howard News Service study of crime records provided by the FBI. Police solved only 35 percent of the murders in Chicago in 2008, the FBI records show.
"We'd expect that -- with more police officers, more scientific tools likes DNA analysis and more computerized records -- we'd be clearing more homicides now with more resources," said Bill Hagmaier, executive director of the International Homicide Investigators Association and retired chief of the FBI's Behavioral Analysis Unit. "But the clearance rates have fallen drastically."
That clearance rate isn't going anywhere for the foreseeable future.