Causation And Remoteness of Damage (Copy)

Introduction to Causation and Remoteness

• Definition and Context:
  • Causation is the third key element in proving negligence.
  • It establishes the link between the defendant’s breach of duty and the claimant’s harm.
  • Involves two primary tests:
    1. Factual causation (“but for” test).
    2. Legal causation (remoteness of damage).

Factual Causation: The “But For” Test

1. Concept:
   • Harm must not have occurred “but for” the defendant’s breach.
   • If harm would have occurred regardless of the breach, factual causation is not established.
2. Key Case:
   • Barnett v Chelsea and Kensington Hospital (1968):
     • A patient who was poisoned would have died regardless of hospital negligence, failing the “but for” test.
3. Strengths and Challenges:
   • Effective for clear, single causes of harm.
   • Difficult to apply in cases involving multiple causes or complex chains of events.

Problems with the “But For” Test

1. Multiple Causes of Harm:
   • Cases where multiple factors contribute to harm require additional tests.
   • Example: Bonnington Castings Ltd v Wardlaw (1956):
     • A material contribution to harm sufficed for causation when multiple sources of dust exposure caused lung disease.
2. Loss of Chance:
   • Courts reject claims based solely on the loss of a chance unless proven on the balance of probabilities.
   • Gregg v Scott (2005):
     • A doctor’s failure to diagnose cancer on time did not meet the “more likely than not” standard for causation.
3. Consecutive Events:
   • When two independent events cause the same harm, the first event is treated as the cause.
   • Example:
     • Baker v Willoughby (1970):
       • A defendant remained liable for all harm caused before a subsequent unrelated event (a robbery).
4. Intervening Acts (Novus Actus Interveniens):
   • A new, independent act may break the chain of causation.
   • Knightley v Johns (1982):
     • A police officer’s negligent order to drive against traffic was an intervening act, breaking the chain.

Legal Causation: Remoteness of Damage

1. Foreseeability:
   • Harm must be reasonably foreseeable to impose liability.
   • The Wagon Mound (No. 1) (1961):
     • Overturned the “direct consequences” rule, emphasizing foreseeability of the type of harm.
2. Application of the Thin Skull Rule:
   • Defendants must “take their victims as they find them.”
   • Example:
     • Smith v Leech Brain & Co. (1962):
       • A burn leading to cancer invoked the thin skull rule, holding the defendant liable for unforeseeable severity.

Policy Considerations in Causation and Remoteness

1. Fairness to Claimants:
   • Ensures compensation for harm directly linked to negligence.
2. Limits on Liability:
   • Protects defendants from excessive liability, especially for unforeseeable or indirect consequences.
3. Consistency and Justice:
   • Balances protecting claimants’ rights with imposing fair limits on defendants.

Special Issues in Causation

1. Material Contribution:
   • Established when multiple sources contribute to harm.
   • Example:
     • McGhee v National Coal Board (1973):
       • A failure to provide washing facilities materially increased the risk of harm.
2. Fairchild Exception:
   • Applies in mesothelioma cases where precise causation cannot be proven.
   • Fairchild v Glenhaven Funeral Services (2002):
     • Allowed claims where defendants materially increased the risk of exposure to harmful asbestos.
3. Compensation Act 2006:
   • Made each defendant jointly and severally liable for mesothelioma claims, reversing parts of the Barker v Corus UK Ltd (2006) decision.

Evaluation of Causation and Remoteness Rules

1. Advantages:
   • Provides a logical framework for linking harm to negligence.
   • Protects against liability for overly remote consequences.
2. Limitations:
   • Difficulty in applying rules to complex, multi-cause cases.
   • Courts often rely on policy considerations, leading to potential inconsistency.
3. Future Trends:
   • Emphasis on balancing claimant rights with defendant protections.
   • Increased reliance on scientific evidence to resolve causation disputes.