Week 7- Causation, damage, remoteness Flashcards
Why is the ‘but for’ test for causation different regarding what must be established compared to the two exceptions?
What must be shown for the two exceptions to the law?
This is the only test for causation under which it is shown that the defendant’s negligence was a necessary condition of the claimant’s harm. They must show that the defendants negligence was more likely to cause the damage than any other factors. Once again it must be shown on a balance of probabilities.
The Wardlaw exception shows that the plaintiff must prove, on a balance of probabilities, that the defendants negligence materially contributed to the damage incurred by the plaintiff; it is applicable in both divisible and non-divisible injuries. it may not be a necessary condition because the injury may happen irrespective of the material contribution to harm.
The Fairchild exception, applicable only in a specific kind of indivisible injuries, requires that the plaintiff can prove that the defendants negligence was a material contributor to the RISK of harm, as opposed to a material contributor to the actual harm, as in Wardlaw. Owing to the inability to identify the extent to which one defendant materially contributed to the damage, based on the limited scientific knowledge surrounding mesothelioma and asbestos, which sets it apart from the Wardlaw exception.
Facts and significance of Bonnington Casting v Wardlaw 1956? (exception number one to “but for” causation?
Facts- A steel dresser exposed to silica dust at work, contracted pneumoconiosis. Part of the exposure derived from a failure on his employer’s part to discharge the duty under the Grinding of metals regulations 1925, as more precautions were expected to take place. The other contributing factor, a pneumatic hammer, could not have been made any safer through further precautions, so no duty of care was owed with respect to guarding against the risks associated with this.
Facts- Lords held that there was no need to show that the contribution of dust made by the swing grinders (which should have been guarded against) was more than 50% of the total exposure to the dust (to prove on a balance of probabilities that they caused the damage (but for)), with more dust coming from the ‘innocent’ hammer rather than the grinders. The employers were nevertheless liable for the disease.
- Ambiguous because it is not clear whether the Lords were ruling on the fact that the greater exposure added to the harm suffered (makes ‘material contribution’ compatible with but for test, as condition would not have been worsened but for the failure to guard against swing grinders.). Or it could rule on the basis that it exerted a causal influence, regardless of whether it would have happened without the swing grinder contribution, which clearly wouldn’t be compatible with ‘but for’ test.
- Nowadays, it’s likely that damages would be apportioned between the tortious and innocent causes of the disease.
- “One reading of Bonnington says that material contribution to injury could be shown in the sense that any exposure will have worsened the injury; it was a progressive disease. On a different reading, it was the interaction of different sources of dust which was taken to have caused injury; it was a case of material contribution to causation of damage.” Whilst not being the sole cause of damage, it made a material contribution, even if it didn’t reach a 50% threshold of contribution. The second reading of this is supported by the SC in Sienkiewicz.
- This is still proved on a balance of probabilities, not that it had to be proved to be above the 50% threshold of causative contribution, but that it was more likely than not to have made a material contribution to damage.
Barnett V Chelsea hospital 1969 facts and significance?
How can this causation case be explained in terms of consequences (damage) ?
Facts- The three men had been vomiting for 3 hours when they arrived at the hospital, after drinking tea. The nurse reported their complaints by telephone to the duty medical officer, who instructed her to tell the men to go home to bed and call in their own doctors. This, reportedly, is what the duty medical officer said:
“Well, I am vomiting myself and I have not been drinking. Tell them to go home and go to bed and call in their own doctors, except Whittal, who should stay because he is due for an X-ray later this morning” [at 431].
All of the men left. About five hours later, one of them died from poisoning by arsenic, which had been introduced into the tea. Nield J concluded that he would have died from the poisoning even if he had been admitted to the hospital and treated with all due care five hours earlier- intervening factors can break the chain of causation, or pre-existing factors which cannot be prevented, regardless of the any attempts made to cure etc.
Significance- There was a breach of duty of care in that the hospital failed to diagnose and offer care, but the ‘but for requirement’ clearly was not satisfied. Even if they employed the utmost care for the men, the man would still have died. The hospital had breached their duty of care, but not caused the death of the deceased, and therefore were not liable for the death in negligence. A breach of duty alone cannot constitute liability in negligence if it does not cause the damage to the plaintiff.
“Causation is, again, related to responsibility. The only ‘responsibility’ in question is responsibility for consequences. If no consequences flow from the breach of duty, then I am not responsible in tort for that breach. If there is an injury, but I could not have prevented that injury through proper conduct, then again, I am not responsible, even if my behaviour is culpable. Even a clear breach of a statutory duty will give rise to no liability in tort if it is not shown to have caused the eventual damage.”
What is ‘but for’ causation?
“In summary, the idea of ‘but for causation’ is treated by Hart and Honoré as no more than a useful way of asking whether the defendant’s breach of duty was effective in the history of events which led to the claimant’s loss, while avoiding ‘abstract metaphysics’. ‘But for’ causation is an important element in our common understanding of the nature of ‘cause’, particularly when causal questions are asked for the purposes of attribution of responsibility. ‘But for’ causation will, however, not always provide the tools that we need.”
But for causation:
-Not enough that the defendants action caused damage to the claimant’s property, it must have been done in a manner which breaches the duty of care and caused that relevant damage. But for is merely a starting point, which asks whether or not the damage would have happened but for the actions of the claimant. If it happens regardless, then it is not a necessary cause of damage. It must be established on the balance of probabilities, but if, on a balance of probabilities, it would more likely have happened regardless of Ds actions than not, then but for causation is not satisfied. It therefore wouldn’t be A NECESSARY CONDITION of the damage.
Facts and significance of Baker v Willoughby 1970 AC 467 regarding concurrent and consecutive torts?
Baker v Willoughby 1970 AC 467:
Facts- P suffered injury to leg in road accident caused by D. Shortly before his action was heard, he was shot in the same leg in an armed robbery, causing the leg to be amputated.
Significance- First tortfeasor liable for the damages which he had caused (despite the intervention of the second event). If the second tortfeasor had been available to sue, he would have had to pay for the additional pain, suffering, loss of amenity and loss of earnings, on top of what D paid with regards to the damage which he caused himself. D remains liable for his causal devaluation to the life of P in full, despite the second event, including the loss of amenity and lower earning capacity, despite the fact that he lost the full leg soon afterwards, which clearly wasn’t attributable to him.
Jobling v associated daries 1982 facts and significance regarding concurrent torts?
How does it disapprove of Baker v Willoughby?
Facts- P suffered back injury at work due to tort of D. Later developed disease to which he had a predisposition.
Significance- HoL held that disease had to be taken into account when assessing the damages. The reward of lost earnings due to Ds actions must be limited by the fact that he would have lost earnings from the onset of the disease from a certain point onwards.
-Conflict with Baker v Willoughby, which was called “unrealistic” by Lord Edmund Davies, and “not acceptable” by Lord Keith. This would be because whether or not the first injury had been caused (the leg being injured in the traffic accident), the eventual amputation would have superseded any effects of the accident anyway, and therefore why should he be liable for the lower earning capacity and loss of amenity which would have stemmed from the amputation of the leg, whilst the armed robber would only pay the additional damages?
Facts and significance of Performance Cars v Abraham 1962?
Facts- the appellant had negligently hit the car of the claimant, who’s Rolls Royce had also been hit two weeks earlier. The car required a re-spray, and the claimant sought to recover £75 from the first party who hit the car. Whilst waiting for the first £75, the claimant sought to recover from the second party (the appellant).
Significance- court held that claimant was not entitled to recover the same damages twice; the appellant was absolved of all liability. It was unjust and illogical for the claimant to recover another £75 from the appellant who had not caused the re-spray to be required. There was no extra damage which had been caused, but if there had been, the appellant would have been liable for any further damage which he caused from his own collision.
How limited is the scope of the Fairchild exception?
Why is the ‘but for’ test not possible to apply in similar mesothelioma cases?
The Fairchild exception is only going to apply to indivisible injuries with similar characteristics to the facts of that case ie there is a lack of medical knowledge which allows us to determine whether mesothelioma is caused by a singular fibre or more than one. Therefore we can’t determine the threshold which must be reached before the onset of the disease starts, which is why the ‘but for’ test isn’t possible to apply here- cannot confidently say that the same injury would have been suffered but for the certain employers negligently exposing an employee to asbestos.
What are the facts of Fairchild v Glenhaven 2002?
Claimants exposed to asbestos dust by a number of employers in different periods of employment. All developed a fatal form of cancer, and it was common knowledge that this could be caused by anywhere between one and many asbestos fibres. Once it had been caused, it was not aggravated by further inhalation, but rather the risk of developing the cancer would increase by further exposure.
What are the necessary conditions of the Fairchild approach?
1) Uncertainty: must be impossible for current scientific knowledge to prove who the true cause was of the increased risk of disease. If it is possible, then the burden of proof remains on the claimants. Otherwise, impossibility favours the claimant against the defendant, who is more likely to be liable where they increase the risk but are not the sole or material cause of the risk.
2) Single Agents: The Fairchild/ McGhee approach not applicable to cases like Wilsher, where there is a variety of different risks which the plaintiff is exposed to. Has to be the same type of risk/ exposure to the same agent.
3) Innocent or self-imposed periods of exposure: But the remarks suggested that if there is a case where one former employer who exposed the claimant to asbestos dust can be shown to have been not negligent (for example because they took proper precautions, or because their exposure of the claimant took place before the date on which such exposure could be said to give rise to foreseeable harm), then the solution reached in Fairchild may not apply. It would be provable that that defendant was not negligent, and therefore liability would fall on another defendant, or none at all. This is because they had discharged their duty of care eg in a Barnett v Chelsea hospital case.
Facts and significance of Chester v Afshar and the difficulty of applying the ‘but for’ test? What were the reasons for the strong dissents against the decision?
Facts- Chester had been complaining of lower back pains and was told that surgery would rectify the pain. She was not informed of the 2% chance of the surgery going wrong and suffered a subsequent complication. It was contended whether there was a causal connection between the failure to warn the patient, and the subsequent damage.
Significance- The court held that, had she been informed of all the risks, she may have sought alternatives, and therefore the failure to warn was a necessary cause of her damage. There were two strong dissents made out.
-Lord Steyn ruled in favour of the claimant because he felt that a failure to award damages would make the role of the doctor somewhat redundant. The risk would not have changed had she been informed, but the doctor had violated her right to choose, and but for this failure to make her aware of the risks, it is conceded that she would have chosen other options, so harm could have been avoided.
Dissent 1) Lord Bingham argued that a failure to inform was not equivalent to causation of her injury from the surgery. It had to be proved that Chester would not have had the surgery at all had she been informed of the risk, in order to satisfy causation. He argued that the ‘but for’ test has not been satisfied at all, and therefore causation has not been made out. The injury would have been possible whenever and by whoever had performed the surgery, not merely by the Dr and his failure to warn her of the injury.
Dissent 2) Lord Bingham argues that even if he had warned her of the risk and she had eventually had the surgery anyway, the risk of injury was still present. The Dr had not caused the injury, even if he had breached his duty of care towards his patient by failing to act in their best interests. “In my opinion this argument is about as logical as saying that if one had been told, on entering a casino, that the odds on No 7 coming up at roulette were only 1 in 37, one would have gone away and come back next week or gone to a different casino. The question is whether one would have taken the opportunity to avoid or reduce the risk, not whether one would have changed the scenario in some irrelevant detail.”
Facts and significance of Holtby v Brigham and Cowan 2000?
Facts- Claimant exposed to asbestos dust for several years, working for the defendant for half that time, developing a form of cancer different to that in Fairchild, because additional exposure makes this particular type of cancer worse, rather than merely increasing the risk of its development.
Significance- Held that defendant only liable for the extent that he contributed to the resultant disability. They rejected an approach based on the length of the exposure, and reduced damages payable by 25%.
- It’s been argued that in a case like Bonnington, argued today, an apportionment would likely be made, between the tortious and non-tortious causes.
- The Fairchild exception could not apply here so the defendant was not liable in full (shows strictness of the Fairchild exception- this is because the extent of the damage was 1) made worse by future exposure and 2) this further exposure could be attributed to the defendant)
Facts and significance of Barker v Corus 2006 UKHL, how has it been reversed following the compensation act 2006 s3?
Facts- similar to Fairchild, claimants had contracted the same form of cancer through exposure to asbestos over many years. One plaintiff had both worked for the defendant, as well as being self-employed, thereby exposing himself to the risk in addition to his employer.
Significance- Problem 1) self-exposure: HL agreed with CA and held that a period of self-exposure did not defeat the Fairchild approach. Where there is a single agent risk, it is not necessary that all the exposures were tortious (in this case the employers one was, but self-exposure was not). The contributory negligence of the claimant is a mitigating factor for the claimants share of responsibility. The defendants liability is for the full damage suffered, a strange rule considering that they were liable for the full damage suffered by the claimant, with the increased risk of injury being construed as the full injury rather than the eventual disease, which was caused by both self-exposure and negligence on behalf of the employer.
-However,
-This decision has been reversed by the Compensation act 2006 s3, which provides a liable person (or their insurer) to recover a contribution from the financial services compensation scheme. Liability therefore apportioned because the plaintiff had also endured a period of self-exposure, which was a provable aggravating factor.
What did the Compensation act 2006 s3 actually do with regards to mesothelioma related claims?
After the decision in Barker there was a swift and fierce political backlash, with large numbers of workers, families, trade unions, and Members of Parliament calling for the reversal of the ruling. This was on the basis that it would undermine full compensation for working people and their families. Soon enough the Compensation Act 2006[3] was introduced, specifically to reverse the ruling. However the Act only applies to mesothelioma. What remains to be seen is whether the “proportionate liability” idea will crop up in other situations
-This is only relevant to the situation where solvent and insolvent companies are jointly liable. Only the solvent company can pay his proportion of the damages when the companies are jointly and severally liable. The compensation act 2006 makes the liable solvent company fully liable, and capable of picking up contributions to cover the costs of paying out on behalf of the insolvent companies.
What is the position currently regarding non-tortious exposure and the rule in Fairchild?
Even where non-tortious exposure eg self-exposure also materially contributed to the risk of mesothelioma, the Fairchild rule would still apply. This is illustrated by the dismissal of the appeal in Barker.
Facts of Sienkiewicz v grief 2011 UKSC?
Facts- Daughter brought a claim on behalf of her mother who had worked at the factory premises at the defendant’s port. She mainly worked in the office but spent time in areas contaminated by asbestos as well. Supreme Court found defendants liable for negligent exposure to asbestos in full, but also that all inhabitants of the port were exposed to low-level asbestos, which was enough to trigger mesothelioma which could not be attributed to the defendant. Questions to be considered First, does Fairchild apply to cases where there is only one tortious exposure?
-Second, in such a case, can the same statistical evidence, which appears to be capable of being used to estimate the defendant’s contribution to the risk of damage, also be used to establish whether the tortious exposure did, or did not, cause the damage?
What is the position on the Fairchild exception following Siekiewicz?
Significance- Lord Rodger- “Defendants whose breaches of duty materially increase the risk that the victim will develop mesothelioma are liable jointly and severally for the damage which the victim suffers if he does in fact develop mesothelioma. This is the current version of the Fairchild exception, as it applies in cases of mesothelioma.
- This seems to put mesothelioma cases in a category of their own, where the scientific knowledge does not necessarily require that the burden of proof fall on the claimant to prove that the defendants negligence caused their injury, where there is a single-agent contributory factor, and it can only be proved that the defendant increased the risk of the diseases onset, but cannot prove that it caused the damage via that fibre.
- Lord Phillips explains the current law: “I see no scope for the application of the “doubles the risk” test in cases where two agents have operated cumulatively and simultaneously in causing the onset of a disease. In such a case the rule in Bonnington applies. Where the disease is indivisible, such as lung cancer, a defendant who has tortiously contributed to the cause of the disease will be liable in full. Where the disease is divisible, such as asbestosis, the tortfeasor will be liable in respect of the share of the disease for which he is responsible.”
What are the problems with the doubles the risk test attempted to be applied in siekiewicz?
The doubles the risk rule puts unsound stress on the Fairchild exception in cases of mesothelioma, and held that it wasn’t necessary in such cases because it only had to be proved on a balance of probabilities that the defendant had materially contributed to the risk of harm.
Facts and significance of Hotson v East Berkshire area health authority 1987 regarding loss of chance to avoid injury?
Facts- Plaintiff fell 12 feet out of a tree, taken to hospital where medical staff failed to notice his acute traumatic fracture of the left femoral epiphysis. He suffered for five days in pain at home, when he returned to hospital and the injury was sufficiently recognised. Had he been diagnosed earlier, the hip deformity, may not have been suffered, but this could not be proved on a balance of probabilities.
Significance- The traditional all or nothing approach of the house of Lords was restored but has been criticised for not dealing with the central issue. The defendant was not found to be liable, and the ‘lost chance’ possibility ruled out.
- The pain suffered was not relevant to the necrosis which he developed, and so it made no difference that the five days of pain was endurred, because it did not cause the unrelated element of damage for which he brought the claim for. It was the fall, rather than the delay, was the sole cause of necrosis. It could not be resolved on a balance of probabilities. The best evidence of the claimant was that the delay materially contributed to the necrosis, but no more. He would have to prove that, on a balance of probabilities, the that delay was a material contributory cause of the subsequent necrosis, or else he could not establish causation.
- The case is better understood, as explained by Lord Mackay, as a case involving a lack of evidence rather than being a loss of chance case. There was insufficient evidence as to whether insufficient blood vessels were left intact after the fall. If they were insufficient, and this was ascertainable straight after the fall, it was inevitable that necrosis would develop. If sufficient blood vessels were left intact, immediate treatment would have avoided necrosis. The evidence is lacking because there was no way to ascertain whether necrosis was inevitable or caused by the lost chance of medical treatment due to the delay, and so it could not be proved, on a balance of probabilities, that the necrosis would have been prevented by immediate medical attention after the fall.
What point of law do the two decisions in Hotson v Berkshire HA and Gregg v Scott make?
-That the loss of chance of recovery does not suffice for damage and therefore is not sufficient for a claim in negligence, often against doctors who’s misdiagnosis results in a loss of recovery chance.
Gregg v Scott 2005 UKHL facts and significance regarding loss of chance and medical negligence?
Facts- claimant consulted doctor about lump under his left arm, and the doctor failed to refer him to hospital for further investigation. It was in fact cancerous lymphoma, which could have been treated at a much earlier stage, had the first doctor not told the claimant that it was merely a build-up of fatty tissue under his arm. Only upon acute chest pain and hospital admission were the facts brought to light, and by this time, treatment was delayed for 9 months longer than it otherwise could’ve been. The claimant sought damages neither for the pain and suffering of the cancerous spread, nor the requirement of treatment, but merely the reduced chance of successful recovery as a result of delayed treatment.
Significance- Both the Lords and Court of Appeal dismissed appeals by Gregg, but Lord Nicholls and Lord Hope in the Lords dissented. The law stands that only when there was a 50% or more chance of recovery, which is severely reduced, may it be recoverable (it was 45% in this case).
Lord Nicholls (dissent) argues that the distinction between over and under 50% is unfounded and makes the doctors duty of care ‘hollow’; once the prospect of recovery falls below 50%, a doctor would be under no duty to maintain or improve the prospect of recovery, and could simply let it diminish. If a patient only ever has a prospect of recovery, the doctor’s duty should be to guard in favour of that prospect of recovery. If loss of recovery is not recoverable, then what duty are doctors guarding against by not breaching their duty of care? He disputes the all-or-nothing approach on the basis that it suggests that a patients chance of recovery is non-existent on account of falling below 50%.
- Lord Hoffmann- “But the outcome was not random; it was governed by laws of causality and, in the absence of a special rule as in Fairchild, inability to establish that delay in diagnosis caused the reduction in expectation in life cannot be remedied by treating the outcome as having been somehow indeterminate.”
- It seems that the fact that the chance is only diminished rather than gone is a big factor; it is a diminished chance case rather than a lost chance case, arguments advanced by Lady Hale and Lord Hoffmann, who were more concerned in reiterating the all or nothing approach.
Textbook overview of the but for test and its application in divisible and indivisible injuries, in comparison to the Wardlaw exception:
“We have seen in this chapter that courts sometimes recognize evidence of ‘material contribution to damage’ as sufficient evidence of a causal link. The nature of this ‘material contribution’ test, and its relationship to ‘but-for’ causation, have however been exceptionally difficult to identify. As things stand, there is some evidence that a claimant who can show that the defendant’s negligence made a ‘material contribution’ to the process by which injury was caused will have satisfied the applicable causal tests. In the case of a divisible injury, there are grounds to think that this is no more than an application of the ‘but-for’ test, and in principle the damages should be proportionate to reflect the defendant’s contribution. In the case of an indivisible injury however, the current state of the authorities suggests that liability will be for the full injury suffered.”
Facts and significance of IEG v Zurich (explaining the significance of the Fairchild exception alongside damage apportionment following the 2006 act)
“The Supreme Court yesterday overturned the Court of Appeal’s judgment in Zurich Insurance PLC UK Branch v International Energy Group Limited [2015] UKSC 33. This case dealt with the law in Guernsey on exposure to asbestos where there is no equivalent to the Compensation Act 2006. The case concerned whether an insurer is liable to indemnify an employer for the entire compensation the employer had paid to an employee (who had died from mesothelioma), despite the insurer only insuring the employer for six out of 27 years of the employee’s employment. The Supreme Court unanimously held that the rule of pro rata liability for the period of exposure, established in Barker v Corus (UK) plc [2006] UKHL 20, continues to apply in Guernsey and therefore Zurich was only liable to pay compensation in proportion to the period of cover it provided to IEG. Had Guernsey had an equivalent to the Compensation Act 2006 (which reversed Barker in the United Kingdom), by a 4-3 majority, the Court held that Zurich would have been liable for the full 100% loss (on account of the injury being indivisible), but with a right of recovery pro rata from other insurers and/or IEG to reflect the fact that it had only insured IEG for six of 27 years of exposure to asbestos.”
Facts and significance of Rothwell v Chemical and insulating co 2007 regarding damage?
Rothwell v Chemical and insulating Co Ltd 2007:
Facts- Claimant sought to recover damages for developing pleural plaques, due to negligent exposure by his employers. The pleural plaques rarely cause any symptoms, nor other asbestos-related diseases. However, the diagnosis of pleural plaques can result in the discovery of other asbestos-related diseases, causing anxiety and depression about the possibility of eventual onset.
Significance- Held that the pleural plaques did not constitute damage in any sense as there were no symptoms associated with the change in the body. Nor was the mere risk of developing an injury actionable as damage without any psychiatric injury resulting from the narrow avoidance of physical damage. The apprehension of a particularly vulnerable person that they might develop a disease is not actionable damage.
- The plaques were merely a marker for asbestos exposure.
- Hoffmann distinguishes between ‘being worse off, physically or economically’ and then ‘simply a physical change’ such as a successful operation, or, in the present case, a neutral change which does not make the claimant worse off.
- The claim for non-negligible action runs from the point at which the actionable damage arises, not when the first damage is incurred, where it is no more than merely trivial. The case of action runs from when “the plaintiff concerned has suffered serious harm”.
- Holland J, with which Lord Hoffmann wholly agrees (pleural plaques) “I start by rejecting any notion that pleural plaques per se can found a cause of action. I am not satisfied that for forensic purposes they can be categorised as a ‘disease’ nor as an ‘impairment of physical condition’. This whole forensic exercise arises because for practical purposes there is no disease, nor is there any impairment of physical condition. If I am wrong, then, the expert evidence as to their significance points (as is in effect, conceded) to them being disregarded as ‘de minimis’. I do not think that that status can be enhanced by associating with such, the risk of onset of asbestos-related symptomatic conditions as arise not from the plaques per se but from the history starting with the initial exposure-still less do I think that that status can be altered by invoking anxiety arising out of the now articulated risks.”
- Disease/ injury are not equivalent with damage; it is not a question of whether the plaintiff has suffered what might be categorised as a disease or injury, but whether this has caused them damage. Where the disease or injury has NO EFFECT, no damage has been suffered and nothing is recoverable. The fact that there is the apprehension of future damage does not help decide whether damage has already been suffered; it is only to be taken into account once a cause of action has been founded when damage has been suffered.