An inconsistent presentation requires examination of the whole evidence. The expert should identify what is unsupported, consider possible clinical explanations and explain how the uncertainty affects diagnosis, causation, function and prognosis. The task is not to decide whether the claimant is a good or bad person.
Exaggeration is not a diagnosis.
“Exaggeration” can describe several processes. A claimant may focus on their worst days, use absolute language or confuse activities they avoid with activities they cannot perform. Pain, anxiety and poor memory may affect the account. Language, communication or learning difficulties can also cause misunderstanding.
There may be deliberate overstatement for an external advantage. That possibility should not be ignored, but intention cannot safely be inferred from one inconsistency or an unusual clinical sign. Symptoms that appear disproportionate are not, by themselves, proof of deliberate fabrication.
The expert should describe the difficulty before applying a label. “The reported level of restriction is not supported by the available evidence” is often more accurate than “the claimant is exaggerating”.
Separate diagnosis from disability.
Diagnosis, causation and disability are related but distinct.
A claimant may have a genuine soft-tissue injury while overstating its duration. A person with an anxiety disorder may travel more often than reported. Someone with chronic pain may experience real pain but underestimate their capacity because movement has become associated with harm.
Evidence weakening the claimed disability does not automatically disprove the original injury. Conversely, proof of injury does not confirm every reported restriction.
The report should ask whether a recognised condition exists, whether the index event caused or aggravated it, what symptoms remain and whether the claimed functional effect is medically supported. This prevents one disputed aspect from deciding the whole opinion.
Look for patterns, not isolated moments.
Psychological symptoms, pain and physical capacity can vary. A claimant may manage a familiar journey but struggle on motorways. They may attend a family event and need rest afterwards. Movement may improve after warming up or when fear reduces.
Variability should not become a universal explanation. Repeated activity directly contradicting a claimed inability deserves proper weight. The expert should still examine the context, duration, assistance provided and whether the evidence challenges the existence of symptoms or only their stated severity.
Surveillance, social-media material and employment records can be useful, but they rarely interpret themselves. A recording demonstrates what the claimant did during that period. It does not establish their condition throughout the day or prove what they felt while doing it.
Compare independent sources.
The claimant’s account should be compared with contemporaneous medical records, treatment notes, employment information, observed presentation and documented activity. The expert should look for convergence rather than one decisive contradiction.
A treatment record showing improvement may carry more weight where it is repeated over several appointments and supported by increased activity. A single entry may be less persuasive if its wording is ambiguous or copied forward.
The claimant should ordinarily be given an opportunity to explain a material discrepancy. The question should be neutral. The expert might identify the reported inability to drive and ask about a record showing recent journeys. The explanation should be recorded even if it does not resolve the inconsistency.
GMC guidance requires expert evidence to be accurate, objective and not misleading. Practice Direction 35 requires consideration of material facts that may detract from the opinion. An expert who includes only information supporting the claimant, or only information undermining them, has not provided a balanced assessment.
Clinical signs require restraint.
Some examinations produce non-anatomical findings, variable effort or differences between formal testing and spontaneous movement. These observations may be relevant, but they should not be treated as automatic proof of deception.
Pain behaviour may be influenced by fear, distress, misunderstanding and attention. The expert should understand the limitations of any clinical sign before relying upon it.
Where formal symptom-validity or performance-validity testing is appropriate, it should be selected and interpreted by a suitably qualified practitioner. Research supports using more than one source of validity evidence rather than treating a single failed measure as a lie detector. A result may reduce confidence in test scores or self-report without proving that every symptom is fabricated.
Say what the evidence supports.
The strongest opinion is often a qualified one.
The expert may conclude that the claimant sustained a genuine injury but that the alleged severity, duration or functional effect is not fully supported. They may accept continuing symptoms while rejecting a claim of complete incapacity. In another case, inconsistencies may be so extensive that the reported history cannot provide a reliable basis for diagnosis or causation.
The report should identify which assertions are supported, which are doubtful and why the distinction matters. It should avoid vague statements such as “there are credibility concerns” without explaining their medical significance.
A useful formulation might state that the evidence supports intermittent pain and some restriction, but not the reported inability to perform all domestic or work activity. That gives the reader a reasoned clinical conclusion rather than a character judgement.
Do not decide dishonesty casually.
Experts may comment on consistency, clinical plausibility and the reliability of the information on which their opinion depends. A final finding that the claimant acted dishonestly may require evidence beyond the medical assessment.
Poor recall, misunderstanding and genuine variability can resemble overstatement. Deliberate exaggeration can also coexist with genuine injury. The expert should resist both reflexive suspicion and unquestioning acceptance.
Where the evidence permits more than one explanation, that uncertainty should be stated. Where new material changes the view, the opinion should be revised promptly and transparently.
Exaggerated symptoms do not always mean that no injury occurred. A genuine diagnosis does not make every claimed restriction reliable.
The expert’s task is to separate the condition that is medically supported from the disability that is alleged, and to explain the difference without making the evidence say more than it can.
