The science of a trustworthy face: Spotting a liar (or Traitor)

Is it possible to spot a liar? The BBC's science correspondent Pallab Ghosh investigates for BBC InDepth.

BBC InDepth is the home of the best news analysis, with fresh perspectives that challenge assumptions and deep reporting on the biggest issues of the day. You can find more articles from InDepth - like this one - on the BBC News website and app.

(Image: BBC/Studio Lambert/Cody Burridge/Matt Burlem)