From Science Daily, April 24, 2008

In making a public appeal for the safe return of his missing wife, Michael White broke down in tears and sobbed.

‘My wife is a good person, never hurts anybody. If she’s out there and you see me or you see this, just stay out there and we’ll find you,’ said the tearful husband, sitting on the sofa in his living room in Edmonton after his pregnant wife Liana White disappeared in July 2005. Canadians watching his plea couldn’t help but be moved by the plight of the distressed man.

Three days later, flashes of anger broke through his sadness when talking with reporters. He said he was so frustrated with the police investigation that he was going to go and find his wife himself. He led volunteer searchers directly to her body in a ditch on the outskirts of the city, and was immediately arrested by police.

He’d been lying all along. Michael White was charged and convicted with second-degree murder and committing an indignity to a dead body.

How can we tell who’s lying, who’s not? New research out of Stephen Porter’s Forensic Psychology Lab at Dalhousie University determines the face will betray the deceiver’s true emotion, but not in the stereotypical ways we think. It’s not the shifty eyes or sweaty brow or an elongated nose (à la Pinocchio) the lie detector should look for. Instead, other elements of a liar’s face will give them away – “cracking” briefly and allowing displays of true emotion to leak on to the face. In fact, when Porter and his team analyzed White’s plea frame by frame, they found hints of anger and disgust in his face, not noticed by most of the supportive public.

Entire article here.