D A L L A S, XXXX -- Michael Serge, a retired Scranton, Pa., police officer, claims he was "only protecting himself" when his wife came at him with a knife and he shot her. But for the first time in a ...

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 ...

You’ve seen it countless times. Police scope out the scene of a crime and find a piece of evidence: a strand of hair, a blood sample, a bullet casing. It goes to the lab, and after forensic scientists ...

Forensic science technician is a blanket name for a number of professionals who might work in the auspices of forensic science. Crime scene investigators, who gather and document evidence at a crime ...

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 ...