Civil Law and UAE: Multi-Layered Causation Analysis in Modern Disputes

1. Introduction

Multi-layered causation means that a loss is not always produced by one simple act. In modern civil disputes, damage may result from a chain of events involving several people, contracts, technologies, decisions, omissions, external events, and the claimant's own conduct.

For example:

Defective software → incorrect automated decision → employee action → financial loss → attempted mitigation → additional loss.

The court must determine which links in this chain have legal significance, which actor caused which part of the damage, and whether any later event interrupted the original causal connection.

Under the UAE's current Federal Decree-Law No. 25 of 2025 promulgating the Civil Transactions Law, effective from 1 June 2026, Article 253 expressly addresses situations where several persons are responsible for the same harm. It permits responsibility to be allocated according to each person's share, equally, or jointly and severally, while also allowing reduction or denial of compensation where the injured party contributed to the harm. Article 255 further requires compensation to correspond to loss and lost profit that are the natural consequence of the harmful act. (UAE Legislation)

Thus, modern UAE causation analysis can be represented as:

Wrongful conduct → Immediate event → Intermediate event → Intervening event → Final damage → Recoverable consequences

2. Meaning of Multi-Layered Causation

Traditional causation asks:

“Did A cause B?”

Multi-layered causation asks a more complicated question:

“Did A, together with B, C and possibly D, legally cause the final damage?”

There may be several layers:

Layer 1 — Primary conduct

The initial wrongful act or omission.

Example:

A contractor installs defective electrical equipment.

Layer 2 — Immediate consequence

The defect produces an immediate technical problem.

Example:

The equipment overheats.

Layer 3 — Intermediate event

Another event contributes to the resulting harm.

Example:

The building's fire-suppression system fails.

Layer 4 — Human or third-party intervention

A person makes a decision affecting the consequences.

Example:

A maintenance employee delays evacuation.

Layer 5 — Final damage

The claimant suffers:

property destruction;

business interruption;

personal injury;

loss of profits;

reputational harm.

The court must determine whether all five layers are legally connected.

3. Statutory Foundation Under Current UAE Civil Law

Article 253 — Multiple Responsible Persons

Article 253 is particularly important for multi-layered causation.

Where several persons are responsible for the same harm:

each may be liable according to their share;

the court may impose equal responsibility;

the court may impose joint and several liability; and

compensation may be reduced or denied if the injured party contributed to the harm or aggravated it. (UAE Legislation)

This provision is highly relevant to modern disputes involving:

construction projects;

medical treatment;

financial transactions;

defective products;

cyber incidents;

AI systems;

data breaches;

transportation accidents;

supply chains;

professional advisers;

multiple contractors.

4. Article 255 and the Natural Consequence Test

Article 255 provides that compensation is assessed according to:

the extent of the loss; and

lost profit,

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

This prevents unlimited liability.

For example:

A negligently damages a company's server.

The company claims:

repair cost;

lost sales;

loss of reputation;

loss of future customers;

loss of an unrelated investment opportunity.

The court must distinguish between consequences sufficiently connected to the wrongful act and losses that are too remote or speculative.

5. Causation Is Different from Fault

This distinction is fundamental.

Fault asks:

Was the defendant's conduct wrongful?

Causation asks:

Did that conduct cause the damage claimed?

Damage asks:

What actual legally compensable loss occurred?

Therefore:

Fault ≠ Causation ≠ Damage

A person may act negligently but not cause the claimant's particular loss.

Conversely, several actors may contribute to one injury.

UAE civil jurisprudence has repeatedly treated the causal connection as an essential element of civil responsibility. A Dubai Commercial Appeal cited in DIFC proceedings stated that liability requires fault, damage and a causal connection, and identified force majeure, the claimant's fault and a third party's act as possible causes affecting that connection. (DIFC Courts)

6. Direct and Indirect Causation

UAE civil-law analysis historically distinguishes between direct and indirect harmful conduct.

A direct cause is one where the defendant's conduct immediately produces the relevant damage.

An indirect cause operates through an intermediate event.

For example:

Direct

A negligently drives into B's vehicle → B's vehicle is damaged.

Indirect

A contractor leaves dangerous material unsecured → a third party moves it → it falls on another person's property.

The legal question becomes whether the intermediate event was sufficiently connected to the original conduct.

Historical Federal Supreme Court jurisprudence, including Civil Cassation No. 99 of Judicial Year 16, is commonly cited for the distinction between direct and indirect harmful conduct and the need to establish the legally relevant relationship between conduct and damage. Because the decision predates the 2025 Civil Transactions Law, it should be used as historical jurisprudential guidance rather than as an interpretation of the current article numbering. (Law Gratis)

7. Concurrent Causes

Sometimes two or more independent causes operate together.

Example

A building collapses because:

the contractor used defective materials;

the engineer failed to detect the defect;

the owner ignored warning signs; and

an unusual external event increased structural stress.

The court does not necessarily have to identify one single cause.

It may ask:

Did each factor contribute?

Was each legally significant?

Was the contribution sufficiently connected to the damage?

Did one event supersede another?

Did the claimant contribute to the loss?

This is particularly important under Article 253, which expressly recognises multiple responsible persons. (UAE Legislation)

8. Intervening Causes

An intervening cause is an event occurring after the defendant's conduct but before the final damage.

It may either:

continue the original causal chain; or

break the causal chain.

Example

A negligently leaves a construction site unsafe.

B independently enters the site and deliberately destroys safety equipment.

C is subsequently injured.

The court must decide whether A's original negligence remained an operative cause or whether B's independent conduct became the legally dominant cause.

This is a factual and legal assessment rather than an automatic rule.

9. Force Majeure as a Causation Problem

Force majeure can operate as a causal defence.

Suppose:

Contractor's delay → government closure → further delay → financial loss.

The contractor may argue that the government closure caused the loss rather than the contractor's breach.

The court must determine:

whether the external event actually occurred;

whether it was independent;

whether it was unavoidable;

whether it actually prevented performance;

whether the defendant's own conduct contributed to the loss.

Recent UAE contractual jurisprudence continues to emphasise the need for a direct causal relationship between the external event and the claimed inability to perform. (Daily Jus by Jus Mundi)

10. Claimant's Own Conduct

Multi-layered causation also examines the claimant's conduct.

Article 253(2) expressly allows compensation to be reduced or denied when the injured party:

contributed to causing the harm; or

aggravated the harm. (UAE Legislation)

Example

A doctor makes an error.

The patient then ignores medically necessary follow-up instructions and thereby substantially worsens the injury.

The court may examine:

Doctor's error + patient's subsequent conduct → final injury

The doctor's original conduct does not automatically make the doctor responsible for every subsequent consequence.

11. Mitigation and Causal Connection

The claimant's post-loss conduct may also matter.

Suppose a company suffers a temporary system failure caused by a defendant.

The company could reasonably restore its systems within two days but deliberately waits three months.

The defendant may argue that the additional three-month loss was caused by the claimant's own failure to mitigate.

The causal question is therefore:

Which portion of the loss resulted from the defendant's conduct, and which portion resulted from the claimant's later decision?

This approach is especially important in commercial damages claims.

12. Loss of Opportunity

Modern disputes frequently involve loss of opportunity rather than a clearly measurable immediate loss.

For example:

lost investment opportunity;

lost tender opportunity;

lost business opportunity;

lost market opportunity.

The claimant must establish a sufficiently reliable causal relationship between the wrongful conduct and the lost opportunity.

UAE jurisprudence has treated causation and proof as important in claims involving future consequences and loss of opportunity. Federal Supreme Court Civil Cassation No. 880 of 2021 is frequently cited in this context. (Law Gratis)

The basic principle is:

A possibility is not automatically a legally compensable loss.

The court must distinguish a genuine lost opportunity from speculation.

13. Contractual Causation

In contractual disputes, the analysis generally proceeds:

Contractual obligation → breach → damage → causal connection → recoverable loss

A breach does not automatically establish entitlement to every loss claimed.

The claimant must connect the breach with the particular damage.

This principle was reflected in Dubai Commercial Appeal No. 445/2020/1034, where the causal connection was treated as essential to contractual and tortious liability. (DIFC Courts)

14. Tortious Causation

For harmful acts, the court similarly examines:

Wrongful act → damage → causal relationship

The existence of damage alone is insufficient.

For example:

A company experiences a large financial loss after a competitor's wrongful conduct.

It must still establish:

what wrongful conduct occurred;

what damage resulted;

how the conduct caused that damage;

whether other causes contributed.

15. Modern Technology and Multi-Layered Causation

Modern technology makes causation more complicated.

Consider an autonomous financial platform:

Developer

↓

Software

↓

Cloud infrastructure

↓

Data provider

↓

AI model

↓

Automated decision

↓

Human or algorithmic execution

↓

Financial loss

The claimant may allege that several actors contributed.

The court therefore needs to separate:

Technical causation

What technically caused the event?

Legal causation

Which cause is legally attributable to the defendant?

Responsibility allocation

What share of responsibility belongs to each actor?

Damage causation

Which particular losses resulted from that conduct?

16. AI and Algorithmic Causation

AI disputes provide an especially strong example of multi-layered causation.

Suppose an AI system makes an incorrect insurance decision.

Potential causal layers include:

defective training data;

negligent model design;

inadequate testing;

deployment without safeguards;

incorrect AI output;

employee reliance on the output;

failure of human review;

claimant's resulting loss.

It would be incorrect simply to say:

“The AI caused the damage.”

The court must identify the legally responsible human or corporate actors behind the system.

This is particularly relevant in the DIFC, whose Digital Economy Court framework expressly encompasses disputes involving AI, AI-dependent devices, digital assets, complex databases, cloud data, digital platforms, automated dispute resolution, robotics and other technology systems.

17. Evidence in Multi-Layered Causation

Causation is frequently proved through multiple pieces of evidence rather than one document.

Relevant evidence may include:

contracts;

emails;

expert reports;

system logs;

audit trails;

photographs;

financial records;

medical records;

technical specifications;

electronic communications;

blockchain records;

metadata;

witness testimony.

The court can therefore construct a causal narrative from the totality of evidence.

This becomes especially important where the causal mechanism is technically complex.

18. Expert Evidence

Experts are particularly important in:

medical negligence;

construction;

engineering;

cybersecurity;

financial loss;

AI systems;

valuation;

accounting;

product defects.

But the expert does not decide legal causation.

The distinction is:

Expert: explains technical causation.

Court: determines legal responsibility.

This distinction prevents technical opinion from replacing judicial reasoning.

19. Case Law

Case 1 — Federal Supreme Court Civil Cassation No. 99, Judicial Year 16

This historical Federal Supreme Court authority is relevant to UAE civil liability, harmful acts and the relationship between wrongful conduct and damage.

Principle

The court examines whether the harmful conduct has the legally relevant connection with the damage claimed.

Importance

It provides a foundation for analysing:

direct causation;

indirect causation;

harmful acts;

damage;

legal attribution.

Because it predates the 2025 Civil Transactions Law, it should be treated as historical jurisprudential authority. (Law Gratis)

Case 2 — Dubai Court of Cassation, Case No. 37/2004

This case is cited in UAE civil-law literature for the proposition that the causal relationship is ordinarily relevant to civil responsibility and may be displaced by circumstances such as:

force majeure;

sudden external events;

creditor fault; or

third-party conduct.

Importance

It is particularly useful for intervening-cause analysis.

The case predates the current Civil Transactions Law and should therefore be used principally for the underlying causal principle. (repub.eur.nl)

Case 3 — Dubai Court of Cassation, Case No. 188/2009

This historical authority is cited for the UAE distinction between direct and indirect harmful conduct.

Principle

A harmful act can give rise to responsibility where the required legal connection exists between the conduct and the resulting harm.

Importance

The case is useful for examining situations in which damage develops through more than one stage.

Again, it should be read together with the current 2025 Civil Transactions Law rather than treated as an interpretation of today's Article 253. (repub.eur.nl)

Case 4 — Dubai Commercial Appeal Nos. 445/2020 and 1034/2020

This authority is particularly important for the proposition that civil responsibility requires:

fault or breach;

damage; and

causal connection.

It also recognises possible causal interference from:

force majeure;

claimant fault; and

third-party conduct.

Importance

It provides a useful framework for modern multi-layer disputes because it prevents a court from treating chronological sequence as automatically establishing legal causation. (DIFC Courts)

Case 5 — Dubai Court of Cassation, Civil Appeal No. 309/2016

This authority is useful in analysing situations involving multiple or concurrent causes.

Principle

Where several circumstances contribute to damage, the court must examine their actual legal contribution rather than assuming that the existence of another factor automatically eliminates the first actor's responsibility.

Importance

The reasoning is particularly relevant today because Article 253 expressly regulates multiple responsible persons.

The current statute therefore provides a clearer legislative foundation for allocation of responsibility than existed under the older statutory framework. (Law Gratis)

20. Case 6 — Dubai Court of Cassation No. 377/2025

This medical-negligence case provides a modern illustration of complex causation.

The dispute involved an initial surgical procedure followed by later medical complications and treatment at other hospitals. One issue before the Court was whether subsequent medical interventions had severed the causal link between the original surgery and later harm.

The Court did not accept the mere existence of later medical treatment as automatically breaking causation. The factual and medical evidence had to be evaluated as a whole. (Al Tamimi & Company)

Importance

This is a particularly useful example of:

Initial act → complication → subsequent treatment → further injury → causation dispute

It demonstrates why multi-layered causation is especially important in medical cases.

21. Case 7 — Haya Spa LLC v Harper Real Estate / Hasan Real Estate [2016] DIFC SCT 150

The DIFC Small Claims Tribunal expressly analysed a causation chain involving multiple events.

The Court applied Articles 10 and 11 of the DIFC Law of Obligations:

the claimant had to establish that, but for the defendant's conduct, the loss would not have occurred;

the defendant's conduct had to be a substantial cause of the loss; and

a supervening event could reduce responsibility where it caused the original conduct to cease being an operative cause. (DIFC Courts)

Importance

This is one of the clearest UAE-linked authorities for explaining intervening events and broken causal chains.

Qualification: DIFC law applies in the DIFC context and is not automatically binding precedent for mainland UAE courts.

22. Case 8 — IDBI Bank Ltd v Amira C Foods International DMCC [2019] DIFC CA 014

The DIFC Court of Appeal emphasised that damages must have a causal connection with the breach.

The Court rejected an approach that would treat a merely temporal relationship as sufficient. A later event occurring after a breach does not automatically establish that the benefit or loss was caused by that breach. (DIFC Courts)

Importance

This provides an important modern distinction:

Temporal connection ≠ causal connection

That principle is highly useful in complex commercial disputes.

23. Case 9 — Alawwal Capital JSC v Rasmala Investment Bank Ltd [2023] DIFC CFI 038

The DIFC Court considered alleged misleading representations and investment losses.

The claimant's case was essentially:

Misrepresentation → reliance → investment decision → financial loss

The Court referred to Article 10 of the DIFC Law of Obligations, requiring proof that, but for the defendant's conduct, the claimant would not have suffered the loss and that the conduct was a substantial cause. (DIFC Courts)

Importance

This illustrates decision-based causation, particularly relevant to:

investment disputes;

misrepresentation;

financial advice;

professional negligence;

AI-generated financial recommendations.

24. Case 10 — BAM Higgs & Hill LLC v Affan Innovative Structures LLC [2021] DIFC CFI 106

The Court stressed that breach by itself does not establish compensation.

The claimant must establish the relevant elements of liability, including damage and causal connection. The Court also referred to Dubai Commercial Appeal 445/2020/1034 concerning fault, damage and causation. (DIFC Courts)

Importance

This case demonstrates the central proposition:

Breach alone does not equal compensable loss.

The causal bridge between breach and damage must still be established.

25. Multi-Layered Causation in Construction Disputes

Construction disputes frequently involve:

Design defect

↓

Contractor error

↓

Subcontractor failure

↓

Delay

↓

Replacement contractor

↓

Additional costs

↓

Loss of revenue

The court must determine:

which actor caused the original problem;

whether delay was caused by several actors;

whether the employer contributed;

whether termination changed the causal chain;

whether later costs were natural consequences;

whether mitigation was reasonable.

An Abu Dhabi Court of Cassation decision concerning post-termination delay illustrates the importance of distinguishing contractual damages from later tort-based claims and identifying the causal source of post-termination loss. Appeals 424 and 483 of 2015 are reported in this context. (BSpace)

26. Multi-Layered Causation in Medical Negligence

Medical disputes may involve:

Initial diagnosis

↓

Treatment

↓

Medical error

↓

Complication

↓

Second hospital

↓

Further treatment

↓

Patient's condition

↓

Permanent injury

The court therefore asks:

Was there a medical error?

Did the error cause the initial injury?

Did subsequent treatment cause additional injury?

Did a pre-existing condition contribute?

Did later medical negligence become an independent cause?

What percentage of the final harm is attributable to each cause?

The Dubai Court of Cassation's 377/2025 decision is particularly useful for this type of analysis. (Al Tamimi & Company)

27. Multi-Layered Causation in Cybersecurity

Consider:

Software vulnerability

↓

Failure to patch

↓

Cyberattack

↓

Data breach

↓

Business interruption

↓

Customer claims

↓

Reputational loss

Several entities may be involved:

software developer;

cloud provider;

cybersecurity vendor;

data controller;

employee;

attacker;

business operator.

The court must distinguish between:

Technical cause

What caused the system failure?

Legal cause

Which defendant's legally relevant conduct caused the loss?

External cause

Did the attack constitute an independent intervening event?

Contributory cause

Did the claimant fail to maintain reasonable security?

28. Multi-Layered Causation in AI Disputes

An autonomous AI system can make causation especially difficult.

For example:

Training data error → model error → automated recommendation → human reliance → transaction → financial loss.

Possible defendants may include:

developer;

data supplier;

model provider;

cloud provider;

integrator;

employer;

platform operator;

human supervisor.

The court should not simply attribute the entire loss to “AI.”

Instead:

AI output → human/legal actor → duty → breach → causation → damage

must be analysed.

This approach is consistent with the broader modern UAE trend toward treating digital and AI disputes through existing legal responsibility frameworks rather than automatically treating technology as an independent legal person.

29. Multi-Layered Causation and Product Liability

A defective product may generate a chain such as:

Manufacturing defect → product failure → fire → property damage → business interruption → lost profits

The manufacturer may face responsibility for the initial defect, while another actor may be responsible for:

improper installation;

negligent maintenance;

misuse;

failure to warn.

Article 253 becomes relevant where several persons are responsible for the same harm. (UAE Legislation)

30. Multi-Layered Causation and Third-Party Acts

A third party can play three different roles:

1. Merely contributing cause

The defendant remains responsible.

2. Additional concurrent cause

Both parties may contribute to the same harm.

3. Superseding cause

The third party's independent conduct may become the legally dominant cause.

Therefore:

Third-party involvement does not automatically terminate causation.

The court must examine the facts.

31. Burden of Proof

The claimant normally needs to establish the factual basis for:

wrongful conduct;

damage;

causal connection;

amount of damage.

The more complicated the causal chain, the more important evidence becomes.

A useful structure is:

32. Judicial Approach to Multiple Causes

A court dealing with multi-layered causation should ideally proceed in stages:

Stage 1 — Identify the initial act

What did the defendant do or fail to do?

Stage 2 — Identify the immediate consequence

What happened immediately afterward?

Stage 3 — Map subsequent events

What happened between the initial act and final damage?

Stage 4 — Identify alternative causes

Were there other independent causes?

Stage 5 — Assess contribution

How much did each cause contribute?

Stage 6 — Test interruption

Did any later event break the causal chain?

Stage 7 — Examine claimant contribution

Did the claimant cause or aggravate the damage?

Stage 8 — Quantify legally attributable loss

Which losses are natural and sufficiently proven?

33. Practical Example

Suppose an autonomous delivery vehicle causes an accident.

The causal chain is:

Manufacturer's sensor defect

↓

AI misidentifies obstacle

↓

Vehicle fails to brake

↓

Operator fails to intervene

↓

Vehicle hits pedestrian

↓

Pedestrian suffers injury

↓

Hospital treatment

↓

Medical complication

↓

Additional loss

Potential responsibility may involve:

manufacturer;

software developer;

AI provider;

vehicle operator;

employer;

hospital.

The court must ask separately:

First question

Did the sensor defect contribute?

Second question

Did the AI software contribute?

Third question

Was the operator's conduct also causal?

Fourth question

Did medical treatment create a new independent cause?

Fifth question

What portion of the final injury is attributable to each cause?

Sixth question

Does Article 253 justify proportional, equal or joint-and-several responsibility?

That is the essence of multi-layered causation.

34. Difference Between Multi-Causation and Multi-Layered Causation

A single dispute can contain both.

35. Important Legal Principles

Principle 1

Damage alone does not establish liability.

Principle 2

Fault alone does not establish compensation.

Principle 3

Causation must connect conduct to legally compensable damage.

Principle 4

Multiple causes do not automatically eliminate responsibility.

Principle 5

A genuinely independent intervening event may interrupt causation.

Principle 6

Claimant contribution can reduce or eliminate compensation.

Principle 7

Remote or speculative consequences are not automatically recoverable.

Principle 8

Article 253 provides an express statutory framework for multiple responsible persons. (UAE Legislation)

Principle 9

Article 255 limits compensation to loss and lost profit that are natural consequences of the harmful act. (UAE Legislation)

Principle 10

Technical causation and legal causation are not identical.

36. Examination Formula

For an examination problem, use:

Act → Duty/Breach → Immediate Cause → Intermediate Causes → Intervening Event → Final Damage → Alternative Causes → Claimant Contribution → Legal Attribution → Quantification

Or, in short:

Causation = Conduct + Connection + Contribution + Continuity + Compensable Damage

37. Quick Case-Law Revision Table

The DIFC authorities are persuasive/sector-specific examples rather than automatically binding authorities for mainland UAE courts.

38. Conclusion

Multi-layered causation analysis is increasingly important in UAE civil law because modern disputes rarely involve one isolated act producing one immediate loss.

The current Civil Transactions Law provides a particularly important statutory foundation through Article 253, which addresses multiple persons responsible for the same harm, and Article 255, which limits compensation to loss and lost profit that constitute natural consequences of the harmful act. (UAE Legislation)

The central judicial task is therefore not merely to identify what happened, but to determine:

Who contributed to the harm, through which causal pathway, whether any intervening event changed that pathway, whether the claimant contributed to the damage, and which consequences are legally attributable and compensable.

One-line exam conclusion

Under UAE civil law, multi-layered causation requires the court to trace the complete chain from wrongful conduct to final damage, distinguish concurrent and intervening causes, assess each actor's causal contribution, account for claimant fault, and compensate only losses that are sufficiently proven and legally attributable as natural consequences of the harmful act.