PRECAUTIONARY PRINCIPLE and CIVIL LAW Judge Christian Byk , Court of appeal, Paris and Secretary general, International Association of Law, Ethics and Science The precautionary principle finds its origin in international law and in the field of the environment but he quickly invested national law and expanded its scope to health issues, as shown by the health crisis that occurred in France since the 1980s. What is the room left to civil law? The reality of a certain 'dialogue' brings a denial to those who saw the marriage of water and fire (I). In fact, civil law uses the concept of precaution in consideration of the question of liability because the precaution has become an element of assessment of the conditions of liability and its effects (II). I The rapid adoption of the precautionary principle in civil law cases A The marriage of fire and water? What are the differences that exist between precautionary principle and civil liability? What consequences can have the adoption of the precautionary principle in the law of responsibility? Logics which are apparently contradictory The precautionary principle anticipates the risk while civil liability regulates its consequences. It is therefore aimed more at collective risk. Its direct recipients are primarily public authorities while civil liability is primarily aimed at individual damages falling under the responsibility of private individuals. The precautionary principle mobilizes new concepts: the existence of risk of serious or irreversible damage, the lack of absolute scientific certainty, the requirement to take precautionary measures. Conversely, in civil liability, only future and certain damage may be compensated. In fact, the precautionary principle applies not only to public authorities. It also influences the law of civil liability but this influence does not lead to radical changes. B Factors of integration of the precautionary principle in civil law 1) Caution As early as 1862, the highest French Court stated that, in the exercise of each profession, "it is general rules of common sense and caution to which everyone must obey above all". Then, the duty of caution was clearly associated with the risks arising from the development of the railway .But it has flourished in 1936 in medical liability jurisprudence when the Supreme Court ruled that the duty of care required the doctor to give the patient «conscientious and attentive care which should be compliant with acquired medical knowledge. » But caution, which implies to organize his conduct to take into account known risks, differs markedly from precaution, which confronts the doctor (or any other actor) at the risk of uncertainty. 2) The logic of precaution as an extension of the principle of prevention to uncertain risks It is for the Court to ensure a fair balance between vigilance ahead of uncertainty and the need not to give too much importance to the measures of prudence. This invitation is a reminder of the following guiding principles: moderation and proportionality. Furthermore, by applying a safety requirement to health products, the judge applied them the precautionary principle. But, in the absence of a duty of security, do civil liability rules allow to implement the precautionary principle? II The influence of the concept of precaution on the fundamental characters of civil liability Not only civil law judge does not ignore the importance of the precautionary principle but he uses it to show that liability may address new issues. The fundamental characters of civil liability are thus revisited with regard to the concept of precaution and this influence affects also the consequences of civil liability and the rules of procedure. A The evolution of the characters of civil liability First, the judge is not locked within the constitutional limits. Article 5 of the Charter of the environment concerns only the public authorities but, through civil liability, the precautionary principle also applies to private individuals. 1) The damage The jurisprudence allows compensation for future injury. But what about the potential damage, understood as a future injury which is uncertain? a) The known risks -The first case relates to financing preventive measures of achievement or aggravation of the damage. In any event, the certainty of the damage is maintained and the risk must be real, imminent and serious and prevention needed to prevent the occurrence of the damage. -In the second case, the compensation will aim to repair economic damage (impairment in value of a property exposed at risk, for example) or moral (the injury of anguish). This is recognized for harm caused by the contamination of a virus, the inhalation of dusts of asbestos or defective cardiac sensors. It is the same in the neighborhood disturbances (the neighbor of a golf course is forced to live under the threat of projections of golf balls). b) The unknown risks The Court of cassation 2011 report asks the question: can we extend the applicable jurisprudence concerning imminent damage to any potential damages? - The potential damages A decision by May 15, 2008, of the Court of cassation shall compensate damage potential, "which already carries all the conditions of its realization" but the distinction of the potential damage to the virtual damage, which alone would be hypothetical, is not always easy. -The hypothetical damages - This applies to GMOs, nanotechnology, mobile telephony and health products. . The reminder of the certainty of the damage requirement The use of civil liability is facing an obstacle due to the absence of known damages, existing or future because, in one of the few cases where the application of the precautionary principle has been invoked, the Court of cassation ruled that it there in no liability in the absence of known damage. The judge and the mobile telephony If several courts have admitted, on the basis of the abnormal neighborhood disturbance, the existence of a legitimate fear resulting from a hypothetical prejudice, this is not the opinion of the Court of cassation. Its 2011 report notes: "the condition of certainty of harm tolerates a certain hazard. If it is small, the action for compensation will not meet with the rule excluding the hypothetical harm. This is the reason why we should probably prefer the term of "imminent harm" to the notion of 'risk of harm '. 2) The fault The Court of cassation nevertheless accepts to incorporate the precautionary principle influence without mentioning it but when it is mentioned, it is to reject its autonomy. - The influence of the precautionary principle It follows that someone may be more severely liable in certain circumstances. * Obligation of safety Appeared for the first time in 1911 in the contract of transport, it was applied to the producers of defective products such as blood and extended to medical equipment and the protection of the health of workers. Obligation of vigilance Recognized by the Court of cassation in the case of the Distilbène, this contractual obligation of vigilance could spread to other areas of law to strengthen foreign activity of health safety obligations. - Remaining within the framework of the rules of civil liability The Court of cassation held always on the basis of breach of an obligation whose shall constitute a fault. It took until 2010-2011 (case of the mineral water spring and matter of the high-voltage line) to decide explicitly on the principle but it was to reject applications appeals for lack of harm for the first case or causation for the second (cf. infra). 3) The causal link The Supreme Court reaffirmed the existence of a direct and certain causal link but accepts that the existence of this link is demonstrated by presumptions. a) Cases concerning the responsibility of the manufacturers of vaccines against hepatitis B By five decisions of May 22, 2008 relating to the vaccination against the virus of hepatitis B, the Court of cassation has accepted the use of presumptions if they are serious, precise and concordant. b) The case of the high-voltage line In this decision, the Court of cassation considered that "the Environmental Charter and the precautionary principle did not challenged the rules according to which it belongs to those seeking compensation for the damage... to establish that the injury was the direct and certain consequence of the damage and that this demonstration, without requiring But the implementation of this reasoning led to reject in serial risks some cases at the same time where we accept others, hence the discontent of some victims. To remedy to this, it seems to us that the Court of cassation could benefit the victim of a presumption of causation where, failing to show the direct and certain injury, it shows a fault of caution borne by the defendant. B Consequences of the precautionary principle on the conditions of an activity To prevent the achievement of damage or its aggravation due to illegal activity, it comes to condemn its author to take the necessary measures for its prevention: conducting works, to destroy a building or to close a facility. The question of the mobile phone shows that the subject is controversial. 1) The opposed opinions of judges In urgent procedure, a majority of decisions rejects the applications because the imminence of the injury or the manifestly unlawful trouble conditions are not met. But opposite decisions have been based on a "potential danger", a 'risk which cannot be neglected' or «a legitimate fear of direct damage to health". With respect to the trial judge, a paradox is clear: when the requests are accepted, it is not on the ground of the precautionary principle but on the basis of abnormal neighborhood disorder! The theory of abnormal neighborhood disturbance and the theory of civil liability are consequently denatured by the precautionary principle. Therefore, it would be preferable to establish a specific preventive action. 2) Towards a specific preventive action? Civil liability is aiming at repairing damage. Without excluding incidental prevention function, it is not possible to consider it in the absence of damage. But to establish a specific preventive action to implement the precautionary principle, it would be enough to relax the conditions of civil liability. Its requirements should focus on the risk and the damage (severe and irreversible). Conclusion In the light of this analysis, the precautionary principle is likely to have consequences in law of civil liability. At a minimum, it renewed the eciation of the operative event, the damage and the causal link. At maximum, it can become a new principle of the law of civil liability, which will imply a preventive and collective action. A second point of view considers that to admit that liability could take place without damage would be a denaturation of civil liability. However, by its dynamism, the precautionary principle is both a principle of civil liability - an enhanced vigilance obligation - but also a principle of procedure as it belongs to the one is responsible for this obligation of vigilance to demonstrate that he has taken all measures to evaluate effective and proportionate risk.