Mr Lachaux sued newspapers for defamatory articles about his conduct during divorce proceedings. The Supreme Court clarified that under section 1 of the Defamation Act 2013, a statement is not defamatory unless it has caused or is likely to cause serious harm to reputation, requiring proof of actual impact rather than merely the inherent tendency of the words.
Facts
Bruno Lachaux, a French aerospace engineer living in the UAE with his British wife Afsana, separated from his wife in 2011 and obtained custody of their son Louis through UAE court proceedings in August 2012. In January and February 2014, several British newspapers including the Independent and Evening Standard published articles making allegations about Mr Lachaux’s conduct towards his wife during the marriage and the divorce and custody proceedings. Mr Lachaux brought libel actions against the publishers.
The Publications
At a meaning hearing, the articles were held to mean that Mr Lachaux had been violent and abusive towards his wife, had hidden his son’s passport to prevent her leaving the UAE, had manipulated UAE law and courts to deprive her of custody, had callously taken Louis from her possession, and falsely accused her of abduction.
Issues
The central issue was the proper interpretation of section 1(1) of the Defamation Act 2013, which provides that a statement is not defamatory unless its publication has caused or is likely to cause serious harm to the reputation of the claimant. The specific question was whether this required proof of actual serious harm or whether it was sufficient to show the words had an inherent tendency to cause serious harm to reputation.
Judgment
The Supreme Court unanimously dismissed the appeal, upholding the finding that serious harm had been caused to Mr Lachaux’s reputation.
Lord Sumption’s Analysis
Lord Sumption, delivering the judgment of the court, held that section 1 of the Defamation Act 2013 requires the application of the serious harm threshold to be determined by reference to actual facts about the statement’s impact, not merely the inherent tendency of the words.
Lord Sumption explained that the reference in section 1(1) to harm that a statement ‘has caused’ points to historic harm which has actually occurred, which can only be established by reference to the actual impact of the statement. The same must apply to harm which is ‘likely to be caused’, referring to probable future harm.
Regarding section 1(2), which concerns bodies trading for profit, Lord Sumption noted this provision must refer to financial loss caused by harm to reputation, necessarily requiring investigation of actual impact rather than merely the inherent tendency of the words.
Lord Sumption rejected the argument that this interpretation was inconsistent with section 8 (limitation) or section 14 (slander) of the Act. He clarified that section 1 supplements the common law by introducing a condition that harm to reputation must be serious, but does not abolish the distinction between defamation actionable per se and that requiring proof of special damage.
Application to the Facts
Warby J’s finding of serious harm was upheld, based on: the scale of publications; the fact that statements had come to the attention of at least one identifiable person who knew Mr Lachaux; the likelihood they had reached others who knew him or would come to know him; and the gravity of the statements according to their determined meaning.
The court confirmed that inferences of fact about seriousness of harm may properly be drawn from a combination of the meaning of the words, the claimant’s situation, circumstances of publication, and inherent probabilities, without requiring direct evidence from every reader.
Implications
This judgment represents an important clarification of the Defamation Act 2013. The ruling confirms that section 1 made a substantive change to defamation law, moving away from the common law position where damage to reputation was irrebuttably presumed from the defamatory words themselves. Claimants must now demonstrate as a matter of fact that serious harm to reputation has been or is likely to be caused. However, this does not require direct evidence from those who read the statement; courts may draw appropriate inferences from all the circumstances. The decision raises the threshold for defamation claims while maintaining the availability of the tort for those who can establish genuine serious reputational harm.
Verdict: Appeal dismissed. The Supreme Court upheld the finding that the newspaper articles had caused serious harm to Mr Lachaux’s reputation within the meaning of section 1 of the Defamation Act 2013, while clarifying that the section requires proof of actual serious harm to reputation rather than merely establishing the inherent tendency of the words.
Source: Lachaux v Independent Print Ltd [2019] UKSC 27
Cite this work:
To cite this resource, please use the following reference:
National Case Law Archive, 'Lachaux v Independent Print Ltd [2019] UKSC 27' (LawCases.net, September 2025) <https://www.lawcases.net/cases/lachaux-v-independent-print-ltd-2019-uksc-27/> accessed 2 April 2026

