University Level Notes: Torts Law - Damage and Scope of Liability
The Damage Element: Context and Three-Step Framework
The negligence action is comprised of three essential elements: - Duty - Breach - Damage
Within the element of Damage, there are three distinct steps to satisfy: - Step 1: Recognized by law: Is the damage suffered by the plaintiff of a kind recognized by law? - Step 2: Factual causation: Was the damage caused by the defendant’s breach of their duty of care? - Step 3: Scope of liability: The damage must not be too remote a consequence of the defendant’s breach.
Step 3: Scope of Liability – Legal Principles and Definitions
Definition: This step addresses whether the plaintiff’s damage is too remote a consequence of the defendant's breach. It serves to place a limit on the extent to which a defendant is deemed liable for their breach of duty.
Legal Nature: This is a question of law.
Language and Terminology: - In the Civil Liability Act 2003 (Qld), this is referred to as "Scope of liability." - Prior to this Act, the concept was known as "causation in law" or "remoteness."
Statutory Basis: Civil Liability Act 2003 (Qld), Section 11: - Section 11(1): A decision that a breach of duty caused particular harm comprises: - (a) Factual causation: The breach of duty was a necessary condition of the occurrence of the harm. - (b) Scope of liability: It is appropriate for the scope of the liability of the person in breach to extend to the harm so caused. - Section 11(4): In deciding the scope of liability, the court must consider (among other relevant things) whether or not and why responsibility for the harm should be imposed on the party who was in breach of the duty.
Normative Consideration: Determining scope of liability requires "normative" assessment, meaning it relates to an evaluation or value judgment (a "should" assessment) based on policy and logic.
Issues within Scope of Liability
The determination involves three specific issues: - Issue 1: Was the damage reasonably foreseeable? - Issue 2: Was the breach a legally significant cause? - Issue 3: If there is more than one cause of the plaintiff’s harm, do any of the other causes amount to an intervening act?
Issue 3.1: Reasonable Foreseeability
General Rule: A defendant is only responsible for the reasonably foreseeable consequences of their wrongful acts or omissions; they are not responsible for everything that flows from their actions.
Case Study: Overseas Tankship (UK) Ltd v Morts Dock and Engineering Co Ltd [1961] AC 388 (‘Wagon Mound (No. 1)’): - Facts: A defendant’s employee allowed oil to spill from their ship, spreading under the plaintiff’s wharf. The oil ignited when molten metal fell from the plaintiff’s welding work on the wharf. The resulting fire damaged the wharf and nearby ships. - Outcome: The plaintiff was unsuccessful in negligence. - Reasoning: The damage was not reasonably foreseeable because, at that time, oil spread on water was not considered a fire hazard.
Case Study: Overseas Tankship (UK) Ltd v Miller Steamship Cp Pty [1967] 1 AC 617 (‘Wagon Mound (No. 2)’): - Foreseeability Standard: A "real risk" is one that would occur to the mind of a reasonable person in the position of the defendant and which they would not brush aside as far-fetched. - Threshold: It does not matter if a risk is remote (occurring rarely or in exceptional circumstances) as long as it is not far-fetched.
Requirement of Foreseeability: - It must be foreseeable that the defendant’s kind of carelessness produces the kind of damage suffered. - It is the foreseeability of the kind of damage that matters, not the precise manner of its occurrence or the exact extent of the damage.
Example: Mt Isa Mines v Pusey (1970) 125 CLR 383: - Facts: Pusey went to aid workmates injured in an accident, carrying one to an ambulance. He later found the worker had died and subsequently developed schizophrenia. - Held: While the specific extent of the injury (schizophrenia) was not foreseeable, some kind of mental disorder was foreseeable, rendering the employer liable.
Example: Chapman v Hearse: - Facts: Chapman's negligent driving caused an accident. Dr. Cherry stopped to help him on a dark, rainy road and was struck and killed by Hearse's negligent driving. - Held: Dr. Cherry's estate did not need to show the precise manner in which harm was sustained (being run over while helping) was foreseeable; it was enough that the negligence created a situation where someone might be injured on the roadway.
The Eggshell Skull Rule
Definition: The test of reasonable foreseeability is subject to the "eggshell skull rule," which dictates that a tortfeasor must take their victim as they find them.
Liability for Aggravation: If the kind of damage is reasonably foreseeable, the defendant is liable for any aggravation of that injury caused by the plaintiff’s inherent susceptibility or pre-existing condition.
Authority: Nader v Urban Transport Authority (1985) 2 NSWLR 501.
Issue 3.2: Legally Significant Cause
This issue allows the court to consider policy concerns to justify imposing (or not imposing) liability.
Case Study: State Rail Authority of NSW v Wiegold (1991) 25 NSWLR 500: - Facts: Wiegold was injured via the defendant's negligence, leading to financial hardship. To survive, he grew and intended to sell a large marijuana crop. He was jailed and sued for consequential economic loss (future earnings) resulting from his imprisonment. - Held: Liability was denied for the economic loss resulting from imprisonment. - Policy Reasoning: If the criminal law determines a person is responsible for their actions and imposes a penalty, the law of negligence should not undermine this by compensating the offender for the consequences of that criminal punishment.
Case Study: Wallace v Kam: - Facts: A surgeon failed to warn a patient of two material risks: Risk A (5% permanent paralysis) and Risk B (neurapraxia – a mild, temporary peripheral nerve injury). Risk B occurred. - Factual Causation: Found. "But for" the failure to warn of both risks, the patient would not have had the surgery. - Scope of Liability: Failed. The purpose of the duty to warn is to allow patients to avoid risks they are unprepared to accept. Imposing liability for a risk the patient would have accepted (Risk B) does not align with the purpose of the duty.
Case Study: Zanner v Zanner: - Policy: Dangerous machines like motor vehicles must be driven with care. Even if the driver is a child, policy dictates they should be held responsible for harm factually caused due to the lethal potential of the activity.
Issue 3.3: Intervening Acts (Novus Actus Interveniens)
Definition: A new, independent act that either intervenes after the negligence (but before damage) or builds upon the initial injury to break the chain of causation.
Effect: If the chain is broken, the defendant is released from liability from that point forward.
Criteria for Breaking the Chain: - (a) Voluntary Act: - Haber v Walker [1963] VR 339: Suicide following depression from an accident was not an intervening act because the plaintiff lacked "free choice" due to mental state. - State Rail Authority v Wiegold: Criminal activity was a rational/voluntary decision, thus an intervening act. - Hirst v Nominal Defendant [2005] 2 Qd R 133: A police officer's choice to pursue a car at 175 km/h was not a voluntary intervening act because his conduct was constrained by duty and the defendant's misconduct. - (b) Causally Independent Act: - The act must be unrelated to the situation created by the earlier negligence (a coincidence) OR it must not be the kind of thing likely to happen as a result of the negligence. - Chapman v Hearse: Hearse hitting Dr. Cherry was not an intervening act because it was the "very thing" likely to happen given Chapman's negligence. - Mahony v Kruschich (Demolitions) Pty Ltd: Negligent medical treatment following an injury is generally foreseeable. It only breaks the chain if the treatment is "inexcusably bad."
Detailed Summary: The Damage Element Step-by-Step
Step 1: Identify, classify, and ensure loss is recognized at law.
Step 2: Factual Causation: - Issue 1: Standard of proof: Balance of probabilities (s 12 CLA). - Issue 2: Was the breach a "necessary condition"? (s 11(1)(a) CLA). - Use the "But for" test for single causes. - If multiple causes, consider material contribution (Zanner) or s 11(2) for evidentiary gaps (materially increased risk + public policy as seen in McGhee or Fairchild). - Note: Plaintiff testimony on what they would have done is inadmissible unless against their interest (s 11(3) CLA).
Step 3: Scope of Liability: - Issue 1: Reasonable foreseeability of the kind of harm (Wagon Mound; s 11(1)(b) and s 11(4)). - Issue 2: Legally significant cause/Policy (Wiegold; Wallace; Zanner). - Issue 3: Intervening acts (Haber; Wiegold; Chapman; Mahony).
Step 4: Reach a conclusion on satisfy the damage element.
Classification of Tortfeasors and Liability Apportionment
Concurrent Tortfeasors: Multiple parties responsible for the same damage. - Joint: Together responsible for one tort (e.g., Vicarious liability; Joint enterprise/Common purpose as in Myer Stores Ltd v Soo). - Several: Independent torts that combine to produce the same damage (Chapman v Hearse).
Successive Tortfeasors: Independent acts producing different damage.
Law Reform Act (1995) (Qld): - Section 6: Plaintiff can sue all or any concurrent tortfeasors. - Section 7: Contribution between tortfeasors should be "just and equitable." - "Just and Equitable" Criteria: 1. Degree of departure from the standard of care. 2. Relative importance of the acts in causing the loss. - Example: In Chapman v Hearse, Chapman contributed $1/4$ because Hearse was "principally responsible."
Solidary vs. Proportionate Liability: - Solidary Liability (Joint and Several): Each wrongdoer is liable for the full amount (100%). Recovery of contribution happens between defendants. This still applies to personal injury claims. - Proportionate Liability (CLA 2003, Ch 2, Pt 2): Abolishes solidary liability in some cases. A defendant's liability is limited to the percentage they are responsible for. - Applies only to: Several concurrent tortfeasors; Property damage and Economic loss claims (s 28). - Does NOT apply to: Personal injury claims.
Practical Scenario Analysis: Alex and Bill
Facts: Alex (8 years old) breaks his collarbone falling from a tree in a school playground. The headmaster knew children climbed it but had no supervision or branch-lopping system. Alex's friend Bill pulled his leg, causing the fall. Alex claims he wouldn't have climbed if told not to.
Application Step 1 (Recognized Harm): Personal injury (broken bone) is recognized.
Application Step 2 (Factual Causation): - Use s 11(1)(a): Was the headmaster's lack of supervision/branch lopping a necessary condition? - Apply the "But for" test. - Note: Alex's testimony that he would have listened to a teacher is inadmissible under s 11(3)(b).
Application Step 3 (Scope of Liability): - Foreseeability: Is it foreseeable that lack of school supervision leads to child injury from tree climbing? Yes (Wagon Mound; Chapman). - Significant Cause: Is it a policy-appropriate cause? Likely yes (Wallace; Zanner). - Intervening Act: Did Bill's act or Alex's act break the chain? Under Chapman or Mahony, child behavior in a playground is typically the "very thing" expected, so Bill pulling a leg might not sever the chain of the school’s negligence.
Application Step 4 (Apportionment): Liability might be apportioned between the school and Bill's representatives if Bill is also found negligent.