As we saw last time, interviews — non-accusatory question-and-answer sessions — provide a means for investigators to uncover truth even when the person being interviewed is intent on deception. Here are four more techniques for detecting lies.
- Excessive certainty
- To compensate for a feeling that the interviewer might be closing in on Truth, or to hide the deceiver's uncertainty from the interviewer, the deceiver can project an air of certainty. But presenting just the right degree of certainty can be tricky for someone who's spinning a yarn. Sometimes deceivers overshoot.
- Most of us can't be really certain about very much. Some deceivers stand out because they deliver material with conviction beyond what might be considered typical of a truth teller, or typical for that particular deceiver.
- Red herring
- The red herring is a diversion technique intended to turn the interviewer in a direction the deceiver considers safe. For instance, in response to "Just how much over budget do you think you'll be?", a deceiver using a red-herring response might discuss the budget performance of other projects.
- Some red herrings are combined with attacks on rivals or already-established scapegoats. For example, the deceiver can use a red herring to lead the audience to conclusions that harm the audience's rivals. Since most audiences would find such material enticing, this form of red herring can be very effective. A first use of the red herring response is a warning sign; a second use must be dealt with directly.
- Consistency becomes increasingly difficult to achieve for deceivers interviewed multiple times, facing multiple interviewers, over a number of sessions, spread over time.
- One escape remains for deceivers who exhibit inconsistencies. They can claim that inconsistencies are due to "rapid evolution of the situation." That is, they might say that new information has come to light, creating the inconsistency. To defend against this, compress the interview's time scale until it's much shorter than the time scale of changes in the situation. Even better, freeze all activity in the environment under review.
- Halting presentation
- As the interview proceeds, possibly across multiple Consistency becomes increasingly difficult
to achieve for deceivers interviewed
multiple times, facing multiple
interviewers, over a number of
sessions, spread over timesessions and multiple interviewers, lie piles on lie. Some deceivers then begin having difficulty keeping straight in their minds what they told to whom and when. Spinning new lies then becomes more challenging than merely creatively constructing simple tales. It's now necessary to construct tales that are at least somewhat consistent with previous tales.
- When this happens, mental resources are required for both consistent tale construction and fluent speech. Only the most facile liars can marshal these resources. And even for them, extending the interview, swapping out one interviewer for another, and stretching the interview over longer periods, can saturate the deceiver's ability to creatively match new lies with old. The result is an increasingly halting presentation.
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More articles on Ethics at Work:
- Workplace Politics vs. Integrity
- A reader wrote recently of wanting to learn "to effectively participate in office politics without
compromising my integrity." It sometimes seems that those who succeed in workplace politics must
know how to descend to the blackest depths, and still sleep at night. Must we abandon our integrity
to participate in workplace politics?
- Tornado Warning
- When organizations go astray ethically, and their misdeeds come to light, people feel shocked, as if
they've been swept up by a tornado. But ethical storms do have warning signs. Can you recognize them?
- On Organizational Coups d'Etat
- If your boss is truly incompetent, or maybe even evil, organizing a coup d'etat might have crossed
your mind. In most cases, it's wise to let it cross on through, all the way. Think of alternative ways out.
- Some Truths About Lies: III
- Detecting lies by someone intent on misrepresentation is an important skill for executives, managers,
project managers, and just about anyone involved in knowledge-oriented organizations. Here's Part III
of our little collection of lie detection techniques.
- On Reporting Workplace Malpractice
- Reporting workplace malpractice can be the right thing to do. And it's often career-dangerous. Here
are some risks to ponder before reporting what you know.
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- On 14 December 1911, four men led by Roald Amundsen reached
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