Expert evidence on pension and actuarial questions is, structurally, an exercise in defending the methodology under adversarial pressure. The report writer has to anticipate the methodological positions an opposing expert or skilled counsel would take, document the chosen methodology with reasoning visible, and defend the chosen positions when challenged. The actuarial calculation is the necessary input. The expert work is the methodological defence around it.
Why methodology-led expert evidence is harder to attack
An expert report that surfaces its methodology — states the choices made, justifies why those choices are appropriate, and shows what would change if a different choice had been made — is harder to attack at trial than a report that hides methodology behind regulatory framing. The hidden-methodology position is hard to defend; the disclosed-methodology position is defensible on its substantive merits.
The firm takes that view literally. Every expert engagement produces a report where the methodological positions are stated, the alternatives considered are documented, and the choice between them is reasoned in language that survives Part 35 questions and cross-examination at hearing. The same methodology is applied across the firm’s expert engagements — the Fair Value Framework — which is what makes the work easier to defend at trial: the methodology layer is established by the firm’s wider practice, not invented for the instant case.
Where expert work runs
The firm acts as expert in High Court and County Court commercial disputes; Family Court matters under FPR Part 25 (where matters fit the matrimonial Single Joint Expert frame the productised Pension Sharing Order Solution is the right shape); Employment Tribunal claims where the quantum is contested at expert level; cases before the Pensions Ombudsman and the Financial Ombudsman Service; and FCA or TPR enforcement matters where actuarial methodology is at issue.
Engagement routes mirror the procedural frameworks. The firm holds a Bar Standards Board direct-instruction licence; counsel and direct-access barristers engage the firm directly for litigation, pre-action quantification input, trial-grade expert reports, and oral evidence at hearing. Solicitor-instructed engagement covers joint instructions and party-appointed work via instructing solicitors. Court-appointed engagement is direct on the court’s order, with the firm responding to subsequent directions in line with the court’s requirements.
Cross-examination on methodology
Cross-examination of a pension expert tends to focus on three predictable lines. First, why a particular methodological choice was adopted rather than its alternatives. Second, whether alternative methodological choices would produce a materially different number, and what those numbers would be. Third, how the expert’s methodology compares with the methodology applied by other experts in similar matters — a question that, when pressed, is really asking whether the expert’s approach is idiosyncratic.
The expert that has disclosed methodology in writing, with reasoning, has answered all three questions before they are asked. The cross-examination then becomes whether the reasoning is sound, which is a different question from whether the methodology was hidden. A report that anticipates the cross-examination at the drafting stage is harder to attack at hearing.
Engagement scoping
Expert engagements at the firm follow a consistent pattern, regardless of jurisdiction. A scoping conversation establishes the question at issue, the procedural framework, and the timetable; a conflict check is run on the parties involved; the engagement letter sets out the scope, fee, and the methodology framework. The substantive calculation work is performed on the firm’s platform; the expert report is drafted with methodology disclosed; Part 35 or equivalent questions are answered in writing within the period specified by directions.
Where the matter proceeds to hearing, the firm attends and gives oral evidence, quoted separately from the report production. Counsel briefing meetings are held in advance of hearing where appropriate. Joint expert meetings, where the matter involves party-appointed experts on each side, are handled in accordance with the procedural framework. The firm’s expert work is structured for the procedural context; the substance is the same across contexts, but the form adapts.
Where Congruent is engaged
The firm’s Expert witness advisory engagement covers expert evidence outside the productised matrimonial Single Joint Expert frame. For productised SJE work, see the Pension Sharing Order Solution. For commercial disputes, employment tribunal matters, regulatory enforcement, and complex Family Court matters outside the standard Part 25 SJE pattern, the bespoke Expert Witness advisory route applies.
Conflict checks are run before accepting any expert-witness instruction. Where the matter is matrimonial, the parties’ names are required at first contact for that check; where the matter is commercial or regulated, the principal counterparties are required. The firm responds within one working day on whether it can act, whether a conflict applies, and what it would need to scope the engagement.
Last updated May 2026.