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:
- The Power of Presuppositions
- Presuppositions are powerful tools for manipulating others. To defend yourself, know how they're used,
know how to detect them, and know how to respond.
- Email Ethics
- Ethics is the system of right and wrong that forms the foundation of civil society. Yet, when a new
technology arrives, explicitly extending the ethical code seems necessary — no matter how civil
the society. And so it is with email.
- Looking the Other Way
- Sometimes when we notice wrongdoing, and we aren't directly involved, we don't report it, and we don't
intervene. We look the other way. Typically, we do this to avoid the risks of making a report. But looking
the other way is also risky. What are the risks of looking the other way?
- When You Aren't Supposed to Say: I
- Most of us have information that's "company confidential," or possibly even more sensitive
than that. When we encounter individuals who try to extract that information, we're better able to protect
it if we know their techniques.
- Approval Ploys
- If you approve or evaluate proposals or requests made by others, you've probably noticed patterns approval
seekers use to enhance their success rates. Here are some tactics approval seekers use.
Forthcoming issues of Point Lookout
- Coming October 17: Overt Belligerence in Meetings
- Some meetings lose their way in vain attempts to mollify a belligerent participant who simply will not be mollified. Here's one scenario that fits this pattern. Available here and by RSS on October 17.
- And on October 24: Conversation Irritants: I
- Conversations at work can be frustrating even when everyone tries to be polite, clear, and unambiguous. But some people actually try to be nasty, unclear, and ambiguous. Here's Part I of a small collection of their techniques. Available here and by RSS on October 24.
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- The Power Affect: How We Express Our Personal Power
- Many people who possess real organizational power have a characteristic demeanor. It's the way they project their presence. I call this the power affect. Some people — call them power pretenders — adopt the power affect well before they attain significant organizational power. Unfortunately for their colleagues, and for their organizations, power pretenders can attain organizational power out of proportion to their merit or abilities. Understanding the power affect is therefore important for anyone who aims to attain power, or anyone who works with power pretenders. Read more about this program.