Pre‑Proof Dismissal for “Fundamental Dishonesty” in Scotland: Only Where Dishonesty Makes a Fair Proof Impossible (and the Motion May Be Refused In Hoc Statu)

1) Introduction

Scott McSeveney v Aviva Insurance Ltd ([2026] CSOH 18) is an Outer House personal injuries action arising from a serious road traffic accident on 19 November 2021. Liability was admitted. The dispute concerned quantum (the value of damages), with the pursuer seeking £2.5 million for brain and orthopaedic injuries.

The defender moved, before proof, to dismiss the action on the basis of alleged fundamental dishonesty—primarily that the pursuer had substantially exaggerated disability to experts (and that this tainted care and other heads of claim). Failing full dismissal, the defender sought dismissal except for solatium (non-patrimonial damages for pain and suffering). The proof was due to begin in April 2026.

The key issues were:

  • Whether the Court of Session should dismiss a claim before evidence is led due to dishonesty about symptoms and capability.
  • What threshold of dishonesty amounts to an abuse of process making a fair proof impossible.
  • Whether the court should instead adopt a procedural response short of dismissal (e.g., refusal in hoc statu, or a sist).

2) Summary of the Judgment

Lord Braid accepted that the court has an inherent power to bring proceedings to an end where they are a blatant abuse of process, including—competently—before proof, but only in exceptional circumstances. He also held that where a pursuer has an admittedly genuine claim, the case for dismissal is “still more difficult”.

On the facts, Lord Braid found there was material (surveillance) showing the pursuer had lied to expert witnesses about key functional abilities (notably driving and physical handling of objects), and that advancing evidence founded on “admitted or palpable untruths” would be an abuse. However, he could not conclude from the footage that the pursuer was fit for work, and therefore he could not discount a genuine claim for loss of earnings.

The motion to dismiss was therefore refused in hoc statu (refused at this stage), leaving it open to the defender to renew the motion if the pursuer fails to make candid disclosure of capabilities to experts and the court, including giving experts the opportunity to revisit earlier opinions in light of the surveillance. Lord Braid considered (but did not order) a sist, noting parties should be heard on that possibility.

3) Analysis

3.1 Precedents Cited

London Organising Committee of the Olympic and Paralympic Games (In Liquidation) v Sinfield [2018] PIQR 8

This authority was invoked for the proposition that where a claimant is fundamentally dishonest in relation to quantum, the court may dismiss the claim as an abuse of process even if some genuine injury exists. Lord Braid did not reject that policy impetus, but his approach shows the Scottish court will scrutinise whether dishonesty has yet crossed the stricter domestic threshold: not merely “dishonesty”, but dishonesty of such a nature that the process cannot fairly proceed.

Summers v Fairclough Homes Ltd 2012 1 WLR 2004 [36] to [39] and [62]

The defender relied on Summers to argue timing—that it is inappropriate to dismiss after evidence has been led and that the motion should be made now. Lord Braid accepted the conceptual availability of early dismissal but, consistent with his emphasis on fairness and exceptionalism, treated dismissal as a last resort where the integrity of the proof is irretrievably compromised, rather than as a routine reaction to pre-proof dishonesty allegations.

Grubb v Finlay [2018] CSIH 29, LP Carloway at [34]

Grubb anchored the Scottish position: pre-proof dismissal is competent but should be exercised only in “the most exceptional of circumstances”. Lord Braid directly adopted this threshold and used it to structure his decision: the case had troubling dishonesty, but not (yet) the kind of irremediable abuse that justified the exceptional step of dismissal in a claim with an admitted genuine core.

Taylor v Forth Valley Health Board [2025] CSOH 103

Cited by the pursuer to emphasise that dishonesty does not automatically equal dismissal, especially where there is a legitimate underlying claim. Lord Braid’s reasoning aligns with this: he distinguished between (i) dishonesty in life or collateral matters and (ii) dishonesty that directly corrupts the evidential foundation of the action to the point that a fair hearing is impossible.

Perrin v Walsh [2025] EWHC 2536

Relied upon by the pursuer to caution against over-reliance on surveillance, including concerns that footage may be edited to show only “best moments”. Lord Braid did not treat surveillance as decisive of the whole claim, but he did treat it as sufficiently compelling to establish specific untruths told to experts (especially given the pursuer’s concession through counsel that he had lied about driving). The decision therefore illustrates a balanced treatment: surveillance can be powerful to impeach particular assertions, while still being an incomplete window into overall disability and employability.

3.2 Legal Reasoning

  1. Competency and threshold: Lord Braid accepted the court’s inherent power to stop abusive proceedings and accepted that dismissal before proof is competent, but emphasised it is reserved for exceptional cases (Grubb).
  2. Relevance of dishonesty: He gave “little weight” (for present purposes) to dishonesty unrelated to proof of loss (criminal convictions, denial of record, prison conduct). The legal focus was on dishonesty that distorts the litigation process on the live issue—quantum.
  3. Dishonesty to experts as process-corrupting: The central concern was not simply exaggeration, but that expert opinion evidence and care assessments had been built on “admitted or palpable untruths”. In that situation, continuing without correction risks an unfair proof and constitutes abuse.
  4. Remediability matters: Lord Braid treated the problem as potentially curable: experts must be given an opportunity to revise opinions with accurate functional information (including surveillance context). Because a genuine loss of earnings claim could not be excluded, dismissal was premature.
  5. Procedural control rather than immediate extinction: Refusal in hoc statu preserved the defender’s position while signalling a clear judicial expectation: candid disclosure to experts and court is essential, and failure may justify a renewed dismissal motion.
  6. Possible sist: The court contemplated a sist (pause of proceedings) to permit compliance and evidential “reset”, but deferred that step pending submissions, reflecting proportionality and procedural fairness.

3.3 Impact

The judgment is likely to be used in Scottish personal injury litigation for three practical propositions:

  • High bar for pre-proof dismissal: Even with proved lies, dismissal before proof remains exceptional—especially where liability and genuine injury are admitted.
  • Core test framed around fair trial: The decisive question is whether dishonesty has made a fair proof impossible, not merely whether the pursuer has behaved dishonestly.
  • Corrective pathway: Where dishonesty has infected expert evidence, the court may insist on corrective steps (full candid disclosure; revised expert opinions) rather than immediately terminating the action—while keeping dismissal available if non-compliance persists.

More broadly, the decision discourages “all-or-nothing” approaches to surveillance-driven dishonesty arguments and signals that Scottish courts will favour measures that restore the integrity of the proof (updated expert evidence) where that remains feasible.

4) Complex Concepts Simplified

  • Proof: The Scottish civil trial where evidence is led before the judge.
  • Quantum: The amount of damages (as opposed to liability).
  • Solatium: Compensation for pain, suffering, and loss of amenity (non-financial harm).
  • Fundamental dishonesty: Not a mere mistake or minor lie; dishonesty going to the heart of the claim or its valuation, potentially undermining the justice of allowing the action to proceed.
  • Abuse of process: Using court procedure in a way that is unfair or improper—here, advancing a damages case built on untruthful factual foundations given to experts.
  • Surveillance evidence: Video/observation evidence used to test claimed disability; helpful for specific activities observed but rarely a complete picture.
  • Refused in hoc statu: Refused “at this stage”; the motion can be renewed later if circumstances justify it.
  • Sist: A pause/suspension of court proceedings.
  • Interim damages: Payments made before final determination; here, the defender offered not to seek repayment if dismissal were granted.

5) Conclusion

[2026] CSOH 18 underscores that pre-proof dismissal for dishonesty in Scotland is an exceptional remedy, most apt where a fair proof has become impossible. Lord Braid drew a sharp distinction between general or collateral dishonesty and dishonesty that contaminates the evidential basis of quantum by misleading experts. Yet, because a genuine loss of earnings claim could not be ruled out and because the evidential distortion was potentially remediable through candid disclosure and revised expert opinion, dismissal was refused in hoc statu. The case sets a practical template: where surveillance exposes untruths, the court may prioritise restoring evidential integrity before taking the draconian step of terminating an otherwise genuine action.