“19. In most defamation claims, the first key issue is the natural and ordinary meaning of the words complained of. This is defined as the single meaning the words would convey to the hypothetical ordinary reasonable reader. That meaning is to be determined objectively by reference to the words themselves. No other evidence is admissible. The author’s intention is irrelevant as is evidence about the meaning that readers actually took from the statement complained of. But the medium of expression and the context in which the words complained of appear are both important. 20. Judges must seek to place themselves in the position of a reader who is neither avid for scandal nor unduly naïve. They should beware of over-elaborate analysis, especially when dealing with postings on social media such as Twitter, which are “in the nature of conversation rather than carefully chosen expression”
“23. Opinion is synonymous with “comment”
“47. The leading authority on this provision is the decision of the Supreme Court in Lachaux v Independent Print Ltd[2020] AC 612 . Lord Sumption’s judgment makes clear ([12]-[14]) that s.1(1) imposed a threshold test, the application of which is to be determined by reference to the actual facts about the impact of a publication, and not just to the meaning of the words. The statutory term ‘has caused’ points to some historic harm, which is shown actually to have occurred; and ‘is likely to cause’ points to probable, actual, future harm. 48. The serious harm test is a question of fact, and facts must be established by evidence. Facts and evidence are matters which are entirely case-specific. Lachaux itself confirmed that there is no hard and fast rule as to how serious harm is to be evidenced. 49. That is partly because of the nature of the harm in question. The ‘harm’ of defamation is the effect of a publication in the mind of a third-party publishee (reader), and thereby on a claimant’s reputation, and not any specific action adverse to a claimant the publishee may take as a result. The test does not require the demonstration of adverse actions by publishees, although such actions may be powerful evidence of the state of the publishee’s mind. Nor does the test relate to any direct effect of a publication on a claimant reading it themselves, although that may be highly relevant to the question of remedies if liability is established. 50. It is also partly because of simple practical considerations relating to establishing, by evidence, not only any individual publishee’s state of mind in response to reading something, but the effects of a publication on any mass readership. In such cases, Lachaux confirmed ([21]) that the evidential process may be able to be discharged by establishing, and combining, the meaning of the words, the situation of the claimant, the circumstances of publication and the inherent probabilities. This is sometimes referred to as a ‘Lachaux inferential case’, based on the ‘Lachaux factors’. But the Lachaux decision itself was at pains to emphasise it was not setting out any special standalone rule of law; it was illustrating the essential point that serious harm is a matter of fact and evidence. As I, and other judges, have said elsewhere, an inferential case is not an alternative to an evidential process; it has to be an evidential process. 51. More generally, since Lachaux, the serious harm test has been given close attention in a series of High Court and Court of Appeal decisions. This jurisprudence was recently summarised fully and clearly by Nicklin J in Amersi v Leslie[2023] EWHC 1368 (KB) at [143]-[163], a passage to which I have addressed myself carefully. I do not need to replicate that passage in full here, since there is no real dispute about the applicable law in this case; it turns largely on its facts. I do, however, note two headline points in particular, for present purposes. 52. First, the jurisprudence has consistently highlighted that section 1(1) is a threshold test, and, in applying it, it is necessary not to lose sight of the basic tort rules of causation (Amersi at [157]). The language of causation is prominent in section 1(1). Evidence contrary to the imputation of causal responsibility is no less important than evidence tending to favour it (Miller & Power v Turner[2023] EWHC 2799 (KB) at [74]). A balanced and fully contextualised approach is needed to the assessment of what Lachaux called the inherent probabilities arising out of any factual matrix placed before a court. 53. Second, that factual matrix must itself be clearly established by evidence. Section 1 requires a clear articulation, and an evidential basis, for what difference the publications and imputations complained of made (or were likely in future to make) in real life. Drawing inferences is not a process of speculative guesswork. It is a process whereby a court concludes that the evidence adduced enables a further inference of fact to be drawn (Amersi [158]; Miller & Power [73])”