Privacy: the development of breach of confidence – the clearest case of horizontal effect?

Abstract

Soon after the Human Rights Act came into force, one commentator suggested that ‘horizontal effect [will] perhaps have its greatest impact in the field of privacy’, and this prediction appears to have been fully vindicated: it is generally acknowledged that it is in the development of breach of confidence into a species of privacy tort that common law horizontal effect has been at its clearest and strongest. Statements by Law Lords in Campbell v. MGN Ltd that ‘The essence of the tort [of breach of confidence] is better encapsulated now as misuse of private information’, followed by the Court of Appeal in Douglas v. Hello! Ltd acknowledging this transformation in bold terms by referring to the ‘action formerly described as breach of confidence’, have had commentators reaching excitedly for their pens to celebrate the new birth. The author has been one of those who have insisted upon the significance of the developments, arguing that they have seen the discarding of one of the key limbs of breach of confidence and the transformation of the other, resulting in at least a de facto new right to privacy. The use of birth metaphors is not just a sign of academic over-excitement, judges have used them too: Jack J in A v. B referred to ‘the law of confidence’ as ‘like a mother swollen with the child of privacy’ who had now ‘given birth and the umbilical cord cut’, although we should immediately note that the typical common law qualifier that this ‘may be’ was added. Perhaps even more significant than this ‘re-christening’ of breach of confidence is the approach taken in the most recent Court of Appeal case, Murray v. Express Newspapers Plc, in which the court, while purportedly dealing with a common law action, appeared to define its key tests in entirely Convention right terms.