21
The four diagnostic domains
The nine zones in the previous two books gave you the vocabulary. The four domains in this chapter give you the grammar — and they have a rare property: this framework does not require any single signal to be reliable.
Why a different framework is needed
The trouble with a catalogue of signals is that it produces a long list of things to remember, and tells you nothing about what to do when they contradict one another — which happens constantly.
The four-domain framework solves that by asking four questions at a higher level. Each question is answered by many signals added together, so no single signal carries decisive weight.
The framework's scoring rule
You can expect someone to respond poorly in one or two domains — out of anxiety, out of fatigue, because they dislike you. But responding poorly in all four domains points to a real communication problem, and that is the moment worth stopping at.
Domain 1 — Comfort and discomfort
This is the strongest domain, and the reason is quite specific: concealment places a distressing cognitive load on a person as they struggle to invent answers to questions that ought to be very simple. Someone with nothing to hide does not carry that burden.
COMFORT indicators
- Mirroring your behaviour — you lean forward, they lean too
- Touching back when touched, to emphasise
- Exposing the ventral front, the inner arms and the legs
- Actively clearing objects out of the space between the two of you
- Gradually moving closer so as not to have to speak loudly
- Breathing rhythm, voice and pitch gradually becoming similar
DISCOMFORT indicators
- Physiology: fast heart, hair standing up, increased sweating, rapid breathing
- Movement: constantly resettling the posture, jiggling the leg, tapping the fingers
- Exit signals: repeatedly checking the time, mentioning the end of the meeting, welcoming every interruption
- Creating distance: leaning away, turning the torso or the feet towards the exit
- Barriers: with the shoulder, with the arms, or with an inanimate object
- Self-pacifying: rubbing the forehead, squeezing the face, rubbing the neck, stroking the nape
- Contempt: eye-rolling, lint-picking, clipped answers, sarcasm
- Eyes: eye blocking, increased blinking, fluttering eyelids
The discomfort indicator most often missed — and it is a strong one
Freezing. The exact opposite of fidgeting: the person sits rigid and does not move at all.
It is hard to catch because it is the absence of something. If you — the interviewer — are comfortable while the subject sits motionless, and everything “looks normal” to an untrained eye, that is a strong signal. Compare it against the background level of movement you recorded during the baseline phase.
A case worth remembering
By the end of one interview, a deceptive and deeply uncomfortable man had slowly built a small barrier in front of himself: first with a soft-drink can, then a pen holder, then a few sheets of paper, and finally a backpack placed on the table between him and the interviewer. At the time, the interviewer did not recognise the subject's obvious intent. The barrier went up so slowly that it never looked like an action.
Domain 2 — Emphasis
This is the least known of the domains but one of high diagnostic value, because it exploits something a liar almost never thinks about.
As a rule, people emphasise when they are being truthful. Liars, for the most part, do not emphasise non-verbally. They think about what to say and how to deceive, but rarely about how to deliver the lie.
A catalogue of genuine emphasis
| Channel | Form |
|---|---|
| Voice | Pitch, timbre, repetition of key words |
| Hands | Illustrator gestures, pushing forward, pointing, light taps on the table, fingertip emphasis |
| Eyebrows and eyes | A quick brow flash, eyes widening exactly as the important word is spoken |
| Torso | Leaning forward when interested |
| Gravity-defying | Rising onto the balls of the feet · lifting the knee while seated · slapping the knee as it lifts |
De-emphasis — the sign of non-commitment
| Behaviour | Meaning |
|---|---|
| Speaking from behind the hand | Not committed to what is being said |
| Restricted facial expression | Trying to control the face because of non-commitment |
| A “weighing” gesture — a finger to the chin, a stroke of the cheek — exactly where emphasis should have been | They are EVALUATING what they have just said and how it was received, instead of emphasising it |
A very sharp diagnostic
Where they ought to be emphasising, they are evaluating instead. A truthful person has no need to monitor how their words are being received — they only have to say what happened. Monitoring the reaction is the work of someone who is constructing.
Domain 3 — Synchrony
The four axes were set out in law 2. Only the fourth axis is added here, because it is the hardest and the least used.
Axis four — event, emotion, time, space
A person reporting truthfully on a serious incident will: cry out for help, emphasise every detail, let the depth of their desperation show, appear eager to help, and be willing to tell the story again and again — even when doing so works against them.
A person whose report is suspect will: be calm out of all proportion, be more concerned with delivering one particular version of the story, show no consistent emotional display, or seem more concerned with their own safety and with how they are seen.
And three kinds of deviation in time and space, all of them easy to check:
- Delaying the report of a serious event
- Going to another jurisdiction to report it, rather than the nearest one
- Narrating from a vantage point they could not have observed from the position they say they were standing in — the most verifiable of the three
Domain 4 — Impression management
This is the domain most easily missed, because the behaviours in it look like the behaviour of someone who is comfortable.
| Behaviour | Purpose |
|---|---|
| Excessive yawning | Performing boredom — “I have nothing to worry about” |
| Sinking deep into the chair, stretching out | Displaying comfort |
| Stretching the arms out, taking more territory than usual | Performing confidence |
The rule for recognising it
These behaviours are suspect only when they do not fit the circumstances. Yawning in a long meeting is normal; yawning repeatedly in a tense situation, or stretching out in the chair when the circumstances call for tension, is a signal. This is the law of synchrony again: not the behaviour, but the fit between behaviour and circumstance.
Verbal impression management — a list of warning phrases
An illustrative case: in one matter, a young mother opened with “I never lie. My mother taught me always to tell the truth.” That sentence contains no information about the matter. It contains only a proposal about how you should see her.
The extended form
- Arriving at the meeting with someone of standing in the community, or with a group of “close friends” as character witnesses
- Self-medicating — alcohol, prescription drugs — in order to appear calm
- Changing hairstyle or clothing to look more sincere or more conventional
A fair note
People practise impression management every day — dressing for a date, preparing for an interview, talking about their own achievements. That in itself is entirely normal. What is notable is when it appears in a setting where the truth is being sought — there, recognising the effort and questioning the intent behind it is reasonable.
Using the four domains in practice
You do not score the four domains all at once. In a real meeting the sequence is usually:
- Domain 1 runs continuously, all session
This is what you track by default — it runs on the same rhythm as scoring the four-cell matrix every three minutes.
- Domain 3 runs while they are speaking
Every important assertion is a chance to check synchrony. You do not need to check every sentence — only the important ones.
- Domain 2 runs on the most important sentences
Especially on denials and on core assertions. Do they emphasise, and do they emphasise in the right place?
- Domain 4 runs at the start and at the end
Impression management concentrates in two places: the opening sentences, and the moment they feel they are about to be suspected.
Chapter exercises
One. Watch a twenty-minute stretch of an interview. Divide a sheet of paper into four columns, one per domain. Write in a column whenever you see something. At the end, which column is fullest?
Two. Practise domain 2 on its own for a week: at every important assertion you hear, ask “do they emphasise, and on which word?”
Three. Count how many times you hear a group B phrase in a week. You will be surprised — and you will find that most of them come from entirely honest people. That is precisely why it is not evidence.
Chapter summary
- The four-domain framework does not require any single signal to be reliable. Each question is answered by many signals added together, so no single signal carries decisive weight — and no question asks you to know “what gesture X means”.
- The stopping threshold: doing badly in one or two domains is normal — out of anxiety, out of fatigue, because they dislike you. Doing badly in all four domains is what points to a real communication problem, and that is the moment worth stopping at.
- Domain 1 runs continuously throughout the session, on the same rhythm as scoring the four-cell matrix every three minutes. It is the strongest because concealment places a distressing cognitive load on a person; someone with nothing to hide does not carry that burden.
- Freezing is the discomfort indicator most often missed, because it is the absence of something. You comfortable while the subject sits motionless is a strong signal — compare it against the background level of movement recorded during the baseline phase.
- A barrier built slowly never looks like an action: a soft-drink can, then a pen holder, then a few sheets of paper, finally a backpack placed on the table. The interviewer at the time did not recognise it.
- Domain 2 runs on the most important sentences — denials and core assertions. People emphasise when they are truthful; a liar thinks about what to say and how to deceive, but rarely about how to deliver it.
- The four emphasis faults: no emphasis · late emphasis · emphasis in the wrong place · unnatural emphasis. All four are independent of content, so you do not need to know the truth to recognise them.
- The sharpest diagnostic in this domain: where they ought to be emphasising, they are evaluating — a finger to the chin, a stroke of the cheek. A truthful person has no need to monitor how their words are being received. In the same direction: genuine positive emotion lifts the body, negative or feigned emotion lets it sag.
- Domain 3 runs while they are speaking, and only on the important sentences. The most verifiable form is narrating from a vantage point they could not have observed from the position they say they were standing in.
- Domain 4 runs at the start and at the end — the opening sentences, and the moment they feel they are about to be suspected. It is the domain most easily missed because the behaviours in it look like the behaviour of someone comfortable; they are suspect only when they do NOT fit the circumstances.
- Both groups of phrases — character claims and sincerity prefaces — try to make you draw a conclusion about the speaker's character rather than about the content. Mark it and return to the content. They are not evidence: most of them come from entirely honest people.