Practical analysis for investment professionals
01 June 2017

Lie Detection in a Post-Truth World

“Everybody knows we are in a post-truth world,” deception detection expert Pamela Meyer told delegates at the 70th CFA Institute Annual Conference in Philadelphia. “People will tell you anything.”

That’s why we need to be mindful of the verbal and nonverbal clues that indicate deception, Meyer explained. She is a certified fraud examiner, the author of Liespotting, and the founder and CEO of the deception detection company Calibrate. If there are two or three verbal and nonverbal signs, Meyer says that we need to probe further to try to uncover the truth.

She highlighted several data points to illustrate the scope of the problem:

  • Roughly one in five employees say they know of fraud in the workplace, but very few cases are reported.
  • 44% of resumes contain exaggerations or outright lies.
  • Almost 60% of employees will steal proprietary data.

“We are starting to study the inside threat, the inside job,” Meyer said. Cyber attacks, in particular, often come from within the organization, she said, citing statistics that between 30% and 58% of these incidents are perpetrated by internal staff.

Becoming a good lie detector and uncovering such malfeasance requires an awareness of our shortcomings. We need to look inward and uncover what our weaknesses are, because liars will target them.

“A lie is a cooperative act,” Meyer stressed. “Its power develops because someone chooses to believe the lie.”

That means we need to do a self assessment.

“You have to start asking yourself: What are you hungry for?” Meyer said. “A liar can instinctively pinpoint that hunger.”


People lie and deceive for a reason. They want to hide their transgressions, to get away with something. Certain difficulties or mindsets make people more likely to engage in the sort of behavior that they will need to conceal.

If a staff member is going to harm their employer by launching a cyber attack, say, or engaging in fraudulent financial activity, they will have a motive. Such behavior often results from a confluence of several factors, according to Meyer. The combination of conflicts at work, alienation from one’s team, and difficult financial straits are an especially caustic mix that can make staff more susceptible to bribery.

Red Flags

“No matter how powerful we are,” Meyer said, “we leak.” What does she mean by this? When we lie, we betray ourselves, whether through verbal or nonverbal cues. Like poker players in a card game, we give off “tells” or signs when we are bluffing.

So what are the red flags that indicate someone may be lying?

When it comes to verbal communications, liars fall back on certain patterns. “Liars will unconsciously distance themselves from the lie,” Meyer said. “Liars will formalize their language.”

She also recommends paying attention to the structure of the story the speaker is telling.

“Truthful stories tend to have a beginning, a middle, and an end,” Meyer said. “Emotional moments will be emphasized.”

That means speakers won’t “bury the lead.” If they were mugged, that fact will be at the top of their story, not left until the end.

Liars will also shift into what Meyer called “convince mode,” a forceful and single-minded effort to persuade the listener of their truthfulness.

Other verbal red flags include:

  • Noncontracted denial
  • Distancing language
  • Specific denial
  • Inappropriate tense
  • Qualifying language
  • An overemphasis on their truthfulness
  • Religious references
  • Euphemisms

Two key nonverbal indicators of deception are displays of contempt and what Meyer calls “duping delight.” Liars tend to show contempt through asymmetrical sneering. With duping delight, they betray an incongruous pleasure in getting away or trying to get away with the deception by smiling or grinning.

Other nonverbal tics that may indicate deception include:

  • Smacking or biting the lips
  • Grooming gestures, like playing with hair or picking off lint
  • Hand wringing
  • Excessive sweating
  • Closed eyes
  • Slumped posture
  • Lowered voice

Throughout the lie detection process, we need to be aware of our own biases, Meyer said. Just because somebody smacks their lips and sweats doesn’t mean they’re lying. It’s important to extend the conversation when we see these signs, so the person returns to their baseline, when they act like their usual selves. “You need to know someone’s norm,” she said, before you can really start to interpret the indicators.

And, of course, Meyer emphasized, lie detection is a fraught and doubt-filled process. That 100% certainty is rarely obtained, barring a full confession or other concrete evidence. Signs of deception are just that: signs.

“Even when those red flags come up, it’s not proof,” she said. “It’s quite dangerous to accuse somebody wrongly of deception.”

Lie detection should be about a search for the truth, not a game of Gotcha!

“You pursue facts,” Meyer said, “never people.”

This article originally appeared on the 70th CFA Institute Annual Conference blog. Experience the conference online through the Virtual Link. It’s an insider’s perspective with archived videos of select sessions, exclusive speaker interviews, discussions of current topics, and updates on CFA Institute initiatives.

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All posts are the opinion of the author. As such, they should not be construed as investment advice, nor do the opinions expressed necessarily reflect the views of CFA Institute or the author’s employer.

Image credit: ©Getty Images/Valentina Bielli / EyeEm

About the Author(s)
Paul McCaffrey

Paul McCaffrey was formerly the editor of Enterprising Investor at CFA Institute. Prior to that role, he served as an editor at the H.W. Wilson Company. His writing has appeared in Financial Planning and On Wall Street, among other publications. He is a graduate of Vassar College and the Craig Newmark Graduate School of Journalism at CUNY.

2 thoughts on “Lie Detection in a Post-Truth World”

  1. Rod Morley says:

    Dear Paul, an interesting subject indeed but I fear some of your readers (including myself) will have been lost in the jargon of ‘noncontracted denial’, ‘Distancing language’, ‘asymmetrical sneering’ etc which unfortunately dilutes the message.
    best regards

    1. Paul McCaffrey says:

      Thanks for the comments, Rod. I have to say on second look, I agree with you. The language should have been much more accessible. For clarity, a non-contracted denial doesn’t use contractions, ie “I did not do it,” as opposed to “I didn’t do it.” And the prime example of distancing language is Bill Clinton with “that woman” as opposed to Monica Lewinsky, and asymmetrical sneering just means the face is all crooked. Anyway, thank you for reading and for the suggestions. Have a great weekend.

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