They can describe events in order, include sensory details, and answer follow-up questions without major contradictions.
When someone is lying, however, this type of question creates pressure.
A lie often starts as a simple idea, but when asked to expand it into a full sequence, the person has to invent details on the spot.
This can lead to hesitation, vague descriptions, or inconsistencies.
For example, they might skip parts of the timeline, repeat the same phrases, or avoid specifics like time, location, or people involved.
The reason this works is because truth relies on memory, while lies rely on construction. Memory may be imperfect, but it has a foundation.
Lies, on the other hand, require constant adjustment to remain believable.
The more detailed the explanation needs to be, the harder it becomes to maintain consistency.
When asking this question, it is important not to interrupt immediately. Let the person speak freely. Observe how naturally the story flows.
Then, after they finish, you can ask the same question again later in a slightly different way, such as, “Can you walk me through that again?” If the story changes significantly, it may indicate that the original version was not stable.
