When a serious crime such as a murder occurs, the identity of the perpetrator may not be obvious. In whodunit scenarios, where it is unclear who is responsible for wrongdoing, forensic science often ...

Peter Neufeld is co-founder and co-director of the Innocence Project. Updated March 30, 2015, 6:45 AM Ray Krone was convicted of murder in Phoenix, Ariz., and sentenced to death. The key evidence used ...

Polygraph (cardio-pneumo-psychograph); 1921. Gift of City of Berkeley Police Department. Photo by Jaclyn Nash, National Museum of American History. The Smithsonian’s National Museum of American ...

NPR's Christopher Joyce explains how medical examiners at the Pentagon, the Pennsylvania crash site and in New York are approaching the grim task of matching body parts to identities. Remains from the ...