What happens when the lie detector expert becomes the one in the hot seat? In this chaotic segment, the polygraph operator ...

A Tribune investigation reveals how Fireball evaded its legal responsibility, exposing communities to contaminants and ...

Who killed her mother? A woman turns to TikTok decades after the unsolved murder - Nikki Wasilishin was just 10 years old ...

Nikki Wasilishin was just 10 years old when her mother was murdered. She tells Andrea Cavallier that the words her 3-year-old ...

The NIA chargesheet says the Pahalgam attack was carried out by three gunmen who targeted tourists after reconnaissance and ...

"20/20" speaks with those close to the crime.

In Andy Hale’s mind, the three Riverside women, who were brutally murdered on March 16, 1960 at downstate Starved Rock State ...

Engineers at Northwestern University have created a wireless polygraph. The innovation falls into the same category as devices seen during police interrogation scenes in movies, but it is not a lie ...

Stress is difficult to measure objectively—especially in infants, elderly patients, and others who cannot clearly communicate discomfort or distress. Researchers developed a lightweight, wireless ...

The polygraph, known more commonly as the “lie detector,” has a long and controversial history as a forensic tool, but it has also been used in a variety of other contexts, including employment ...

All polygraph questioning techniques that aim at some form of standardization or reproducibility involve comparisons of physiological responses to questions of central interest for the investigation ...

Kay Parsons was a devoted mother whose life would end in shocking violence. Watch the all-new "20/20" true crime event, ...