Summary
Where multiple concurrent or cumulative wrongs contribute to an overall financial loss, factual causation need not be established by applying the “but for” test to each individual breach or item of loss. The court may assess the combined effect of the wrongs using common sense, and apportion responsibility between defendants by contribution proceedings.
Inducement to breach of contract requires a causal connection between the inducement and the breach. This is distinct from causation of the loss resulting from the breach. The ordinary reasonable-foreseeability requirement applies to the tort of inducement.
Where precise quantification is impracticable, damages may be assessed broadly and pragmatically, while allowing for evidential uncertainty.
Factual background
ENRC brought two linked actions arising from investigations conducted by Dechert and from the Serious Fraud Office’s dealings with Dechert during an attempted self-reporting process. The claims concerned unnecessary legal and third-party costs, wasted management time, and losses allegedly resulting from the SFO’s later criminal investigation.
Following an earlier judgment determining substantial breaches of duty, the present trial addressed causation, remoteness, mitigation, quantum, contribution and exemplary damages. The central questions were whether the defendants’ cumulative wrongdoing caused the claimed losses, whether the SFO would have commenced the criminal investigation absent its wrongdoing, and how liability should be apportioned.
Held
- Disposition. ENRC established that the SFO’s wrongdoing was an effective cause of the losses comprising Unnecessary Work, Unnecessary Costs and wasted management time. The SFO’s wrongdoing also caused the commencement of the Criminal Investigation. The detailed sums were to be worked out, with further assessment required for losses flowing from that investigation.
- Factual causation. The breaches were numerous, consecutive and concurrent. It was not realistic to identify which individual breach caused each item of financial loss. The proper approach was to assess the overall effect of the wrongdoing on the expansion of the investigation. The “but for” test was therefore not appropriate as the exclusive test for the SFO’s breaches.
- Inducement and remoteness. The SFO’s inducements had a causal connection with Dechert’s breaches. The question whether the inducement caused the breach was distinct from whether the breach caused loss. The losses were reasonably foreseeable in type. The fact that the SFO could not foresee each individual workstream or invoice was immaterial.
- Counterfactual and quantum. In the counterfactual, the Kazakhstan investigation should generally have ended by 31 October 2011, subject to limited work on stripping and Ms Zaurbekova. The Africa investigation should have been narrower and proportionate. The court used a common-sense, broad-brush approach to assess necessary and unnecessary work and costs.
- Criminal Investigation. DC23 and DC24, viewed in the context of the prior IDCs, were effective causes of the SFO’s decision to commence the Criminal Investigation. The Kazakhstan material was subsidiary; the principal reasons concerned new information suggesting serious African wrongdoing, lack of frankness and the need to secure evidence.
- Contribution and exemplary damages. Dechert and Mr Gerrard were jointly and severally responsible for the Unnecessary Work damages. Responsibility for Unnecessary Costs and wasted management time was apportioned 75% to Dechert and Mr Gerrard and 25% to the SFO. The high threshold for exemplary damages was not met. The earlier judgment would not be reopened in relation to the March 2013 leak.
The court’s approach to earlier authorities
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Key cases cited
23 authorities cited.
- AIC Ltd v Federal Airports Authority of Nigeria [2022] UKSC 16
- Khan v Meadows [2021] UKSC 21
- The Financial Conduct Authority v Arch Insurance (UK) Ltd and others [2021] UKSC 1
- Sevilleja v Marex Financial Ltd [2020] UKSC 31
- Walumba Lumba (previously referred to as WL) (Congo) 1 and 2 v Secretary of State for the Home Department [2011] UKSC 12
- Transfield Shipping Inc (Appellants) v Mercator Shipping Inc (Respondents) [2008] UKHL 48
- OBG Limited and others (Appellants) v. Allan and others (Respondents) Douglas and another and others (Appellants) v. Hello! Limited and others (Respondents) Mainstream Properties Limited (Appellants) v. Young and others and another (Respondents) [2007] UKHL 21
- Dubai Aluminium Company Limited v. Salaam (Original Respondent and 2nd Cross-appellant) and others (Original Appellants and Cross-respondents) and Others and another (Original Respondent and 1st Cross-appellant) [2002] UKHL 48
- Kuddus (AP) v. Chief Constable of Leicestershire Constabulary [2001] UKHL 29
- Smith New Court Securities Ltd v Scrimgeour Vickers (Asset Management) Ltd (Smith New Court Securities Ltd v Citibank NA) [1997] AC 254
- Rookes v Barnard [1964] AC 1129
- Britned Development Ltd v ABB AB And ABB Ltd [2019] EWCA Civ 1840
- Wellesley Partners LLP v Withers LLP [2015] EWCA Civ 1146
- Meretz Investments NV & Anor v ACP Ltd. & Ors [2007] EWCA Civ 1303
- Aerospace Publishing Ltd & Anor v Thames Water Utilities Ltd [2007] EWCA Civ 3
- Re-Source America International Ltd. v Platt Site Services Ltd. & Anor [2004] EWCA Civ 665
- Rahman v Arearose Ltd [2001] QB 351
- Downs v Chappell [1997] 1 WLR 426
- Ladd v Marshall [1954] 1 WLR 1489
- Borealis AB v Geogas Trading SA [2010] EWHC 2789 (Comm)
- Asda Stores Ltd v Mastercard Inc [2017] 4 CMLR 32
- Heskell v Continental Express Ltd [1950] 1 All ER 1033
- Ministry of Pensions v Chennell [1947] KB 250
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Cases citing this case
1 later case · 1 caution
Most senior citing decisions:
- R v William Osmond [2026] EWCA Crim 979 explained
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