Causation Flashcards
Barnett v Chelsea and Kensington Hospital
Factual Causation
- Hospital breached duty of care owed to a patient.
- Doctor failed to carry out proper examination.
- Patient died of arsenic poisoning after drinking poisoned tea.
- Evidence showed he would have died even if doctor HAD examined him.
- Little or no chance that necessary medicine would have been administered on time.
- No factual causation. ‘But for’ test could not be satisfied.
Wilsher v Essex
Multiple Independent Causes
- Premature baby suffered condition that caused him to go blind.
- Evidence to suggest blindness could have been caused by 1 of 5 factors, including doctor’s negligence (therefore 1 tortious & 4 non-tortious factors).
- Applied ‘but for’ test.
- Could not prove on balance of probabilities (51%) that blindness caused by breach as opposed to other factors.
Hotson v East Berkshire Health Authority
Loss of Chance (medical negligence)
- Child fell from tree and broke leg.
- Hospital was negligent in its treatment and child left paralysed.
- Medical evidence showed 75% risk of paralysis even if hospital treatment perfect.
- ‘But for’ failed - C could only prove 25% chance breach caused paralysis.
- Originally awarded 25% of value of the claim, but H of L rejected this. Claim failed.
Gregg v Scott
- Rejection of claim for loss of life expectancy due to negligent failure to diagnose claimant’s cancer which reduced survival rate by half.
- Courts reluctant to apply ‘loss of chance’ argument to medical negligence situations.
Allied Maples Group v Simmons & Simmons
- SS negligence meant that C lost chance to negotiate a better deal.
- Courts allowed claim. Causation successful as C able to prove real and substantial chance seller would have agreed to the clause.
Bonnington Castings v Wardaw
Multiple Cumulative Causes
- C contracted respiratory disease from dust exposure at work.
- Claimed compensation in negligence from his employers.
- Some exposure deemed to be natural consequence of work being carried out (non-tortious).
- Some exposure due to D’s breach of duty.
- Non-tortious and tortious factors operated together.
- Apply ‘but for’ –> but for dust exposure, C would not have contracted the disease.
- Fails ‘but for’ though because can’t tell how much of the loss was caused by the tortious exposure.
- Material contribution test introduced.
- If D’s breach can be proved to have materially contributed to C developing the disease, D would be liable for the loss.
- Material contribution means ‘more than negligible’
Bailey v Ministry of Defence
- Showed that material contribution test can be applied to more than just industrial cases.
- C suffered brain damage due to cardiac arrest.
- Cardiac arrest either caused by natural progression of C’s condition (non-tortious) or negligent lack of care by D (tortious).
- Medical experts could not say if negligent treatment was on B of P the cause.
- But able to prove the tortious/non-tortious factors worked together.
- Factual causation satisfied - the breach materially contributed to the brain damage.
McGhee v National Coal Board
- What happens when you don’t know whether the multiple causes acted independently or cumulatively?
- C contracted dermatitis due to brick dust exposure.
- Worked with brick dust during working hours - no breach re: exposure (non-tortious cause).
- But D did not provide washing facilities to wash off at end of day, so time on skin extended (tortious).
- But for dust exposure, D would not have contracted dermatitis.
- Important difference to Bonnington.
- Medical evidence could not establish that dermatitis was a cumulative condition - could have been due to single exposure. Could have been caused by non-tortious dust or tortious dust.
- BUT could establish that longer dust on C’s skin, greater risk of contracting dermatitis.
- MATERIALLY INCREASED THE RISK.
- Distinguish from Wilsher in that there was more than one causal agent, whereas here there was one (dust).
Fairchild v Glenhaven Funeral Services Ltd & Others
- D worked for numerous employers at different times in 1960s.
- 25 years later developed form of lung cancer associated with asbestos exposure.
- Science could not establish if disease caused by cumulative exposure to A or single asbestos fibre.
- C of A decided one fibre to blame.
- ‘But for’ failed - could not prove which employer exposed C to single fibre.
- C might have been exposed to single fibre before started working for D.
- Held that D materially increased the risk.
KEY POINT: Weigh fact that D might be held liable for damage he did not cause against fact that people who suffer harm due to employers’ breach need to be compensated for their loss.
Apportionment
Bonnington Castings v Wardlaw; McGhee v National Coal Board
- In both Bonnington and McGhee, D was held 100% liable for loss despite non-tortious factor.
Fitzgerald v Lane & Patel
- C crossing road when lights were red.
- First D driver collided with him, C thrown into road where run over by second D driver.
- Both drivers held negligent.
- But C also negligent.
- Each held one third to blame - C by 50%, two Ds 25% each.
Humber Oil Terminal Trustee v Sivand
LEGAL CAUSATION
- Acts of God/Natural Events
- D’s tanker negligently collided with and damaged C’s dock - property damage.
- During repair further expenses occurred when seabed collapsed.
- Further expenses caused by sea bed collapse still recoverable - collapse not a NAI as it was in realms of foreseeability.
Meah v McCreamer
- C suffered injury in road accident leading to personality disorder.
- Disorder led C to commit various criminal acts including rape.
- Disorder linked to original tort, could not break chain of causation.
KEY POINT: if later act can be linked to D’s breach, no break.
Knightley v Johns
ACTS OF 3RD PARTIES
- First D caused road traffic accident.
- Police inspector negligently handled traffic afterwards.
- Negligence led to claimant police officer being killed (ordered to drive down tunnel against traffic flow).
- First D argued negligent handling broke chain of causation. Police inspector’s actions unforeseeable.
Scott v Shepherd
- If 3rd party acted instinctively i.e. heat of the moment, no break in chain of causation.