R v Attorney General for England and Wales [2003] UKPC 22

A former member of the Special Air Service wished to publish an account of his service. While serving, he had signed a confidentiality agreement after being told that refusal would mean returning to his original regiment. The Ministry of Defence sought to enforce that agreement in litigation in New Zealand. The serviceman, anonymised as R, argued that military pressure, the relationship with his superiors and lack of independent advice undermined his consent. The Privy Council considered whether the agreement could be avoided for duress or undue influence and whether the undertaking was supported by consideration.

Did the threat of returning a serviceman to his regiment amount to illegitimate pressure or undue influence, making the confidentiality agreement unenforceable despite the Ministry’s interest in protecting information?

The majority advised dismissal of the appeal. Lord Hoffmann distinguished the existence of pressure from its illegitimacy. The Ministry had a legitimate interest in preventing unauthorised disclosure, and making continued service in the unit conditional on the undertaking did not constitute duress on the facts. Its forbearance from returning R to his regiment also supplied consideration. The relationship’s hierarchy did not make the agreement an improper exploitation of influence requiring avoidance. Lord Scott dissented, placing greater weight on the military relationship and the circumstances of signature when considering undue influence. His concerns about advice and the transaction’s fairness were important to understanding the division, but they were not the majority’s conclusion. The case did not establish that all confidentiality restrictions or military demands are enforceable.

Pressure arising from a lawful employment or service choice is not necessarily illegitimate duress. Undue influence likewise requires more than hierarchy alone: the relationship and transaction must be assessed for improper use of influence. In this case the majority upheld the confidentiality undertaking.

The case separates duress from undue influence and shows how both can arise from the same factual relationship without sharing identical tests. It is particularly useful for avoiding the assumption that a difficult choice proves lack of legally effective consent. Because the decision was a Privy Council appeal from New Zealand, an English-law answer should identify its persuasive status. The majority and Lord Scott’s dissent also provide contrasting assessments of military authority, legitimate confidentiality interests and independent advice.