Civil Law and UAE: Non-Linear Causation in Tort Analysis

1. Introduction

Non-linear causation in tort law refers to situations where the injury or loss does not result from one simple event directly followed by another. Instead, the harm may emerge from a chain, combination, interaction, escalation, feedback process, intervening event, or multiple independent causes.

A simple model of causation is:

Wrongful act → Injury → Loss

Non-linear causation may instead look like:

Act A + Act B → changing circumstances → Act C → aggravation → final loss

or:

A → B → C → D → Loss

where each event may alter the significance of the previous event.

This issue is increasingly important in UAE civil litigation involving:

construction accidents;

medical negligence;

financial loss;

cyber incidents;

digital platforms;

environmental harm;

multiple tortfeasors;

insurance claims;

professional negligence;

complex commercial systems.

Under the current UAE Civil Transactions Law, Federal Decree by Law No. 25 of 2025, compensation is linked to the loss and lost profit that are the natural consequence of the harmful act, while the law expressly addresses multiple persons responsible for harm and contribution by the injured person. (UAE Legislation)

2. Meaning of Non-Linear Causation

Non-linear causation exists where causation cannot realistically be represented as:

One cause → one effect.

Instead, several factors interact.

Example

A construction company negligently leaves a dangerous opening.

A worker falls.

The worker suffers an initial injury.

Medical treatment is delayed.

A medical complication develops.

The worker loses employment.

The worker incurs additional financial losses.

The final loss may therefore involve:

Construction negligence + medical circumstances + claimant's conduct + subsequent events.

The court must determine which losses are legally attributable to the original defendant.

3. UAE Legal Foundation

The current Civil Transactions Law provides an important statutory framework.

Article 253

Where multiple persons are responsible for harm:

each may be liable according to their share;

the court may impose equal liability;

the court may impose joint and several liability;

compensation may be reduced or denied where the injured person contributed to causing or aggravating the harm. (UAE Legislation)

Article 255

Compensation is assessed according to:

the extent of the loss; and

lost profit,

provided that the loss is the natural consequence of the harmful act. (UAE Legislation)

These provisions are particularly relevant to non-linear causation because they require the court to determine how far the consequences of an initial wrongful act legally extend.

4. Traditional Causation vs Non-Linear Causation

5. Elements of Tort Causation

A tort claim generally requires the claimant to establish:

Duty or legal obligation

Breach/fault

Causation

Damage/loss

DIFC jurisprudence expressly describes negligence through duty, breach, causation and damage. In Haya Spa LLC v Harper Real Estate / Hasan Real Estate, the Court analysed these elements separately and applied both a “but-for” and substantial-cause approach. (DIFC Courts)

For mainland UAE law, the precise statutory provisions and applicable sector-specific legislation must be applied to the particular claim.

6. Factual Causation

The first question is:

Would the claimant have suffered the relevant loss without the defendant's conduct?

This is commonly called the but-for test.

For example:

Without negligent construction → no accident → no injury.

But complex cases can make the question difficult.

Suppose:

A negligent act + an independent natural event → injury.

The court must determine whether the defendant's conduct was sufficiently causally connected to the injury.

7. Substantial Cause

A defendant's conduct may form an important causal component even when other factors also contributed.

The DIFC Law of Obligations expressly requires the defendant's conduct to be both:

a “but-for” cause; and

a substantial cause,

subject to the rules on intervening events. Haya Spa applied this framework. (DIFC Courts)

This provides a useful analytical model for understanding complex causation, although DIFC legislation should not be treated as identical to mainland UAE law.

8. Intervening Events

An intervening event occurs after the defendant's conduct and potentially changes the causal chain.

Examples include:

third-party negligence;

medical treatment;

natural events;

claimant's subsequent conduct;

independent criminal acts;

contractual decisions;

technological failures.

The central question becomes:

Did the later event merely contribute to the loss, or did it replace the original wrongful act as the operative cause?

Under the DIFC framework considered in Haya Spa, a supervening event can affect liability where it causes the defendant's conduct to cease being an operative cause. (DIFC Courts)

9. Case Law 1 — Haya Spa LLC v Harper Real Estate / Hasan Real Estate

Haya Spa LLC v Harper Real Estate / Hasan Real Estate [2016] DIFC SCT 150

This is particularly useful for studying complex causation.

The defendants supplied incorrect technical information concerning premises. The claimant relied upon that information in developing design work and claimed resulting losses.

The defendants argued that subsequent events, including approvals and other circumstances, had broken the causal chain.

The Court considered whether the defendants' conduct remained both:

a but-for cause; and

a substantial cause.

It concluded that, for the relevant period, the defendants' conduct remained causally significant. (DIFC Courts)

Principle

A subsequent event does not automatically destroy causation.

The court must determine whether the original conduct remains an operative and substantial cause.

10. Multiple Causation

Multiple causation exists where two or more factors contribute to the same loss.

For example:

Defective design + negligent construction + inadequate supervision → structural failure.

The court may need to determine:

which defendant caused what;

whether the harm is divisible;

whether the harm is indivisible;

whether responsibility should be apportioned;

whether joint-and-several liability is appropriate.

Article 253 of the current Civil Transactions Law expressly addresses multiple persons responsible for harm. (UAE Legislation)

11. Case Law 2 — Al Khorafi v Bank Sarasin-Alpen

Al Khorafi & Others v Bank Sarasin-Alpen (ME) Ltd & Bank Sarasin & Co Ltd [2015] DIFC CA 008

The litigation involved complex allegations concerning investment losses and the conduct of multiple actors.

The Court of Appeal considered causation issues, including arguments concerning whether particular losses were caused by particular conduct and whether other factors affected the losses. (DIFC Courts)

Principle

In a complex financial dispute, proving wrongdoing does not automatically establish that all subsequent financial losses were caused by that wrongdoing.

The claimant must establish the relevant causal connection between the wrongful conduct and the particular loss claimed.

12. Case Law 3 — Amira C Foods v IDBI Bank

Amira C Foods International DMCC & AK Global Business FZE v IDBI Bank Ltd & Karan A Chanana [2018] DIFC CFI 027

This case is important where there are competing explanations for a loss.

The Court considered alternative theories of causation and recognised that the court should assess competing causal explanations before deciding where the probabilities lie. (DIFC Courts)

The Court also referred to the possibility of adopting a reasonably robust approach to causation where negligence has been established and the damage is of the type that might reasonably be expected from the defendant's work. (DIFC Courts)

Principle

Causation is not determined simply by identifying a possible cause.

The court evaluates competing explanations and determines which causal explanation is established on the applicable standard of proof.

13. Case Law 4 — IDBI Bank Ltd v Amira C Foods

IDBI Bank Ltd v Amira C Foods International DMCC & Others [2019] DIFC CA 014

The Court of Appeal considered the relationship between causation and mitigation/benefits when assessing damages.

The Court emphasised that a benefit should only be brought into account against damages where it has the necessary causal connection with the breach or with mitigating action. (DIFC Courts)

Principle

Causation does not stop once liability is established.

It can also affect the calculation of damages.

Thus:

Breach → Causation → Loss → Causally connected benefits/mitigation → Final damages

14. Case Law 5 — Aegis Resources DMCC v Union Bank of India

Aegis Resources DMCC v Union Bank of India (DIFC Branch) [2020] DIFC CFI 004

The case involved allegations concerning banking transactions and claimant conduct.

The Court considered contributory negligence and the extent to which the claimant's own negligent acts or omissions contributed to the loss. (DIFC Courts)

Principle

Non-linear causation may involve the claimant's own conduct.

The causal question therefore becomes:

Defendant's conduct + claimant's conduct → resulting loss.

The current UAE Civil Transactions Law similarly permits reduction or denial of compensation where the injured party contributed to causing or aggravating the harm. (UAE Legislation)

15. Case Law 6 — Ludiala v Lucaan Limited

Ludiala v Lucaan Limited [2020] DIFC SCT 139

The claimant alleged psychological harm arising from workplace circumstances.

The Court emphasised that merely proving that an injury or psychological condition existed was insufficient. The claimant had to establish, on the applicable standard, that the defendant's conduct actually caused the alleged harm. (DIFC Courts)

Principle

Temporal sequence is not necessarily causal sequence.

The fact that:

Event A happened → Injury B appeared later

does not automatically prove:

A caused B.

This is particularly important in:

medical negligence;

psychiatric injury;

occupational claims;

toxic exposure;

environmental cases.

16. Case Law 7 — Shihab Khalil v Shuaa Capital

Shihab Khalil v Shuaa Capital PSC [2009] DIFC CFI 017

The Court explained that negligence requires not only lack of due care but also proof that the careless conduct caused loss to the claimant. (DIFC Courts)

Principle

Breach without causation is insufficient.

This is particularly important in complex systems where a defendant's conduct may have been wrongful but not responsible for the particular loss claimed.

17. Case Law 8 — BAM Higgs & Hill v Affan Innovative Structures

BAM Higgs & Hill LLC v Affan Innovative Structures LLC [2021] DIFC CFI 106

The judgment referred to Dubai appellate authority stating that civil liability requires the three essential elements of:

fault;

damage; and

causal connection.

It also recognised that force majeure, a foreign cause, claimant fault or a third-party act can be relevant to causation. (DIFC Courts)

Importance

This authority is useful because it demonstrates that UAE court reasoning and DIFC jurisprudence both place causal connection at the centre of civil liability, although their statutory frameworks are not identical.

18. Concurrent Causes

Concurrent causes occur when two or more factors operate together.

Example

A building collapses because of:

defective engineering;

poor materials;

negligent construction;

inadequate inspection.

The collapse may not have occurred because of any single factor alone.

The court may therefore need to ask:

Would the harm have occurred if one of these factors had been absent?

and:

Did each defendant's conduct materially contribute to the final harm?

This is a classic non-linear causation problem.

19. Cumulative Harm

Some injuries develop gradually.

Examples include:

pollution;

toxic exposure;

repetitive workplace injury;

environmental degradation;

long-term medical complications;

cyber-security failures;

financial losses caused by repeated misconduct.

The causal model becomes:

Small contribution A + Small contribution B + Small contribution C → cumulative injury.

The court must determine whether the defendant's contribution is legally significant.

20. Sequential Causation

Sequential causation involves successive events.

Example:

Defective product → injury → negligent treatment → aggravated injury.

Potential defendants could include:

manufacturer;

distributor;

medical professional.

The difficult question is whether the later negligence:

merely aggravated the original injury; or

completely displaced the original defendant's responsibility.

The answer depends on the facts, applicable UAE legislation and the applicable legal framework.

21. Third-Party Intervention

A third party can enter the causal chain.

Example:

A negligently creates a dangerous condition.

Then:

B negligently responds to it.

Then:

C suffers damage.

The court may need to examine:

whether A's conduct remained operative;

whether B's conduct was foreseeable;

whether B's conduct was independent;

whether C contributed to the loss.

The existence of a later event does not automatically eliminate the first defendant's responsibility.

22. Claimant's Contribution

The claimant may also contribute to the harm.

Examples:

ignoring warnings;

failing to mitigate;

continuing dangerous conduct;

providing incorrect information;

failing to obtain reasonable medical treatment.

Article 253 of the current Civil Transactions Law expressly allows the court to reduce compensation or refuse compensation where the injured person contributed to causing or aggravating the harm. (UAE Legislation)

This creates:

Defendant contribution + claimant contribution → judicial allocation of loss.

23. Non-Linear Causation and Damages

Causation affects damages in two separate ways.

Stage 1 — Liability

Did the defendant cause the injury?

Stage 2 — Quantum

Which portion of the claimant's overall loss was caused by the defendant?

For example:

Initial injury = AED 100,000

Later unrelated business loss = AED 500,000

The claimant cannot necessarily recover AED 600,000 merely because the business loss happened after the injury.

The court must establish the legally relevant causal connection.

Article 255 links compensation to the loss and lost profit that constitute the natural consequence of the harmful act. (UAE Legislation)

24. Natural Consequence Test

The phrase “natural consequence” is especially important.

It prevents unlimited liability.

Without some limiting principle:

Wrongful act → every later consequence → unlimited damages.

The law instead requires a legally meaningful connection between:

harmful act → loss claimed.

Thus causation operates as a boundary of tort liability.

25. Non-Linear Causation in Construction Disputes

Construction disputes frequently involve:

design defects;

contractor negligence;

subcontractor negligence;

delay;

defective materials;

employer instructions;

consultant errors;

weather;

regulatory approvals.

The final loss may therefore result from a network of causes.

Analytical model

Design defect

Construction defect

Late instruction

Delay

↓

Project disruption

↓

Additional costs

↓

Lost revenue

The court must identify which losses are legally attributable to each party.

26. Non-Linear Causation in Medical Negligence

Medical claims are particularly complex because the patient's condition may have several causes.

Possible factors include:

pre-existing disease;

original injury;

negligent diagnosis;

delayed treatment;

subsequent infection;

patient's own conduct.

The court may require medical expert evidence to determine the causal relationship.

The principle illustrated by Ludiala is important: the existence of a condition does not itself prove that the defendant caused it. (DIFC Courts)

27. Non-Linear Causation in Financial Loss

Financial harm may arise from:

Misrepresentation → investment → market change → liquidity problem → additional investment → loss.

The defendant may be responsible for some consequences but not necessarily every subsequent market loss.

Al Khorafi and Amira C Foods illustrate why courts must closely analyse the connection between alleged misconduct and the specific financial losses claimed. (DIFC Courts)

28. Non-Linear Causation in Digital and Cyber Disputes

Modern UAE disputes may involve:

Cyber vulnerability → unauthorised access → data theft → third-party misuse → financial loss → reputational damage.

Potentially responsible actors may include:

software provider;

cybersecurity provider;

data controller;

employee;

hacker;

platform;

financial institution.

The court must determine which causal links are legally attributable to each actor.

This is an emerging area where conventional causation principles must be applied to technologically complex factual networks.

29. Causation and Multiple Tortfeasors

Article 253 of the current Civil Transactions Law is particularly relevant.

Where several people are responsible:

A + B + C → Harm

the court can consider:

proportionate responsibility;

equal responsibility;

joint-and-several responsibility;

claimant contribution.

(UAE Legislation)

Therefore, non-linear causation frequently leads directly into the question of apportionment.

30. Role of Expert Evidence

Expert evidence can be crucial in non-linear causation cases.

Experts may analyse:

Medical

Whether treatment caused deterioration.

Engineering

Whether multiple construction defects caused structural failure.

Financial

Whether particular conduct caused investment losses.

Digital

Whether a particular vulnerability caused the cyber incident.

Environmental

Whether particular emissions caused contamination.

But the expert generally provides technical evidence, while the court decides the ultimate legal question of liability.

31. Causation, Probability and Proof

Complex causation rarely provides mathematical certainty.

Courts generally work through evidence and the applicable civil standard of proof.

Relevant evidence may include:

contemporaneous documents;

expert reports;

witness evidence;

electronic records;

financial records;

medical records;

technical logs;

alternative explanations.

The court asks:

Which causal explanation is established by the evidence?

Amira C Foods is useful because the Court considered alternative causal explanations before reaching its conclusion. (DIFC Courts)

32. Causal Chain vs Causal Network

Causal chain

A → B → C → D

This is relatively linear.

Causal network

A → C

B → C

C → D

B → D

D → E

This is non-linear.

Modern civil disputes increasingly resemble the second model because many economic and technological systems involve multiple interacting actors.

33. A Practical UAE Tort Analysis Model

For a non-linear causation problem, use the following sequence:

Step 1 — Identify the wrongful act

What did the defendant do or fail to do?

Step 2 — Identify the initial harm

What injury or loss first occurred?

Step 3 — Map all subsequent events

Identify:

claimant conduct;

third-party conduct;

natural events;

medical treatment;

contractual decisions;

technological events.

Step 4 — Apply factual causation

Would the loss have occurred without the defendant's conduct?

Step 5 — Examine substantial contribution

Was the defendant's conduct an important causal factor?

Step 6 — Examine intervening events

Did another event supersede the original conduct?

Step 7 — Consider claimant contribution

Did the claimant cause or aggravate the harm?

Step 8 — Apply the natural-consequence limitation

Is the claimed loss a legally relevant consequence of the harmful act?

Step 9 — Apportion responsibility

Where multiple actors contributed, determine appropriate allocation.

Step 10 — Calculate damages

Award only the loss legally connected to the defendant's conduct.

34. Flowchart

Wrongful Act

↓

Initial Injury/Loss

↓

Multiple Subsequent Events

↙ ↓ ↘

Claimant Conduct — Third Party — Natural Event

↘ ↓ ↙

Causal Analysis

↓

Intervening Cause?

↓

Natural Consequence?

↓

Multiple Tortfeasors?

↓

Claimant Contribution?

↓

Apportionment

↓

Damages

35. Important Distinctions

36. Important Case-Law Principles

Haya Spa LLC v Harper Real Estate / Hasan Real Estate — subsequent events do not automatically break causation; but-for and substantial causation must be examined. (DIFC Courts)

Shihab Khalil v Shuaa Capital — negligent conduct must cause loss; breach alone is insufficient. (DIFC Courts)

Amira C Foods v IDBI Bank — competing causal explanations must be considered when determining causation. (DIFC Courts)

IDBI Bank v Amira C Foods — causation also matters when determining whether benefits or mitigation should reduce damages. (DIFC Courts)

Aegis Resources v Union Bank of India — claimant's own negligence may contribute to loss and reduce recovery. (DIFC Courts)

Ludiala v Lucaan — temporal connection between an event and an injury does not itself establish causation. (DIFC Courts)

Al Khorafi v Bank Sarasin-Alpen — complex financial losses require careful analysis of the causal connection between alleged wrongdoing and particular losses. (DIFC Courts)

BAM Higgs & Hill v Affan Innovative Structures — causal connection is an essential component of civil liability; third-party acts, claimant fault and other external causes can be relevant. (DIFC Courts)

37. Key UAE Statutory Principles

The current Civil Transactions Law provides three especially important principles for this subject:

Article 253

Multiple responsible persons may be allocated proportionate, equal or joint-and-several responsibility; claimant contribution can reduce compensation. (UAE Legislation)

Article 254

Moral harm is compensable, including certain infringements of freedom, honour, reputation, social standing and financial status. (UAE Legislation)

Article 255

Compensation covers the loss and lost profit that constitute the natural consequence of the harmful act. (UAE Legislation)

Together, these provisions provide an important statutory framework for analysing complex causal relationships.

38. Mainland UAE vs DIFC Caution

A crucial examination point is that the cases above are predominantly DIFC authorities.

The DIFC has its own statutory framework, including the DIFC Law of Obligations, under which the explicit “but-for + substantial cause + intervening act” formulation appears. (DIFC Courts)

The mainland UAE Civil Transactions Law is a separate federal legal framework. Therefore, a DIFC decision should not be cited as though it were a binding interpretation of Article 253 or Article 255 of the mainland Civil Transactions Law.

Nevertheless, the DIFC decisions are valuable comparative UAE authorities for understanding judicial analysis of:

causation;

intervening events;

alternative causes;

claimant contribution;

damages;

complex loss.

39. Conclusion

Non-linear causation in UAE tort analysis deals with situations where harm results from a complex interaction of multiple events rather than one straightforward wrongful act.

The fundamental analytical structure is:

Wrongful conduct → factual causation → competing/intervening causes → claimant/third-party contribution → natural consequence → apportionment → damages.

The current UAE Civil Transactions Law is particularly significant because it expressly addresses multiple responsible persons, claimant contribution and compensation for loss that is the natural consequence of the harmful act. (UAE Legislation)

The case law demonstrates that a defendant does not automatically escape liability merely because later events occurred. Conversely, a defendant is not automatically responsible for every consequence that follows chronologically from the original conduct.

Exam-ready formula

Non-Linear Tort Causation =

Multiple Causes + Intervening Events + Claimant Contribution + Alternative Explanations + Natural Consequence + Apportionment

One-line principle

In UAE tort analysis, the central question in a complex causal system is not merely whether the defendant's conduct occurred before the loss, but whether the evidence establishes that the conduct remained a legally relevant cause of the particular loss claimed.