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Law Notes Contract Law Notes

Duress Notes

Updated Duress Notes

Contract Law Notes

Contract Law

Approximately 1511 pages

From the AuthorContract law notes fully updated for recent exams at Oxford and Cambridge. These notes cover all the LLB contract law cases and so are perfect for anyone doing an LLB in the UK or a great supplement for those doing LLBs abroad, whether that be in Ireland, Hong Kong or Malaysia (University of London).

These were the best Contract Law notes the director of Oxbridge Notes (an Oxford law graduate) could find after combing through dozens of LLB samples from outstanding law students wit...

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What must be proved

1. Illegitimate pressure applied by enforcing party

  • Universe Tankships v International Transport Workers’ Federation [1983]:

    • Lord Diplock:

      • The threats must be so catastrophic so as to vitiate C’s will, vitiating their consent to various agreements

        • It is not that the party seeking to avoid the contract did not understand the terms of the agreement

          • It is that his apparent consent was induced by pressure exercised upon him which the law does not feel to be legitimate.

    • Lord Scarman:

      • Whether the threat is illegitimates depends on the nature of the threat and of the demand

        • If the threat is independently unlawful (e.g. I will kill your family, or a threat= a breach of duty by the enforcing party)

          • then the threat is “generally” treated as illegitimate

  • With threats to the person and property (detaining/doing violence to)

    • Barton v Armstrong [1976]: C agreed in a deed to buy out D’s interest in Landmark after entering into it because of D’s threat to have him killed. D argued that commercial advantage also a reason for it, so no duress.

      • Lord Cross: act is unlawful and therefore constitutes illegitimate pressure.

  • Economic Duress: Threats to breach a contract

    • Where one party threatens to breach an existing contract unless the other party pays more or accepts less performance than was originally due.

      • Chen Wishart: this is treated as illegitimate pressure as it amounts to a threat of unlawful conduct (breaching a contract)

    • BUT when should these re-negotiations be enforced?

      • Doctrine of Consideration: never – if not additional consideration, then modification not enforceable

        • Atlas Express Ltd v Kafco Ltd [1989]: C undervalued costs of carriage for D to W, whom D had a lucrative contract with. C attempted to renegotiate, but after failing, demanded that D sign new agreement or C would not carry goods. D, under pressure b/c no alternative carrier, signed new document. Then attempted to set aside.

          • Tucker LJ:

            • D certainly signed the document under compulsion

              • Is true that economic duress is distinct from commercial pressure

            • But economic duress will occur where D’s apparent consent was induced by pressure that was illegitimate

              • Equally, there was no consideration to support the new agreement so it ain’t legit.

          • Burrows: doesn’t say why pressure was illegitimate

            • Moi: but that was because D believed they could not get a new carrier at such short notice and that they would breach their contracts otherwise

      • BUT promissory estoppel: can enforce promises of same for less in limited circumstances

        • But doctrine not applicable if the promisee had applied illegitimate pressure to obtain it (“he who seeks equity must come with clean hands”)

        • Williams v Roffey Brothers [1991]:

          • Russell LJ:

            • Where a party undertakes to make a payment because by so doing it will gain an advantage arising out of the continuing relationship with the promisee

              • the new bargain will not fail for want of consideration as estoppel will apply.

    • Relevance of good faith/bad faith to economic duress

      • CTN Cash and Carry v Gallaher Ltd [1994]: D supplied cigarettes to wrong warehouse of C, goods stolen. Mistakenly thinking risk had passed to C, D demanded payment, threatening to cut credit of C if failed to pay up. C paid up, then tried to set aside agreement for duress.

        • Steyn LJ:

          • Since D thought in good faith that the goods were at the risk of C and that C owed D the money in question

            • D’s motive in threatening credit withdrawal was an exercise of lawful commercial self interest in obtaining a sum they thought due to them.

          • Law should not open good faith threats of lawful action and look over them when parties fall out

            • It would introduce a substantial and undesirable element of uncertainty to the law.

      • Huyton SA v Peter Cremner [1999]:

        • Mance J:

          • Authority suggests that good faith and bad faith may be relevant considerations,

            • especially since the state of mind of a party making a threat may be significant

              • Even where threatening or in actual breach of duty.

  • Economic Duress: Lawful Act Duress

    • Universe Tankships v International Transport Workers’ Federation [1983]: C had ship blacklisted by D, so no tugs to help it out. C paid $6480 to pension fund, then claimed it back.

      • Lord Scarman:

        • Threats of lawful conduct are generally legitimate,

          • but may exceptionally be illegitimate if they are “immoral or unconscionable” when coupled with an illegitimate demand

            • The more unfair the demand

              • The more likely the threat used to support it will be illegitimate.

    • Lawful pressures which are legitimate

      • Threat not to contract

        • This is implicitly present in all pre-contractual negotiations and should not be considered illegitimate pressure

      • Refusal to waive an existing contractual obligation

      • Exercise of a party’s right for legitimate purposes

        • R v AG England and Wales [2003]: SAS solider (X) attempted to publish account of experiences, breaching a confidentiality agreement. X claimed that the agreement was voidable for duress as the Crown had threatened to transfer him from his elite unit to a regular unit if he did not keep it

          • Held that threat was lawful as

            • Crown had right to transfer soldiers

            • Exercise of right was reasonable in order to protect unauthorised disclosures which may have threatened its personnel and operations

    • Lawful pressure which is illegitimate

      • Blackmail

      • Threats not to offer relief unless extortionate terms are agreed in an emergency

        • The Port Caledonia: Ship Y went dangerously close to Ship Z in a storm. A tug was requested but the master of the tugs demanded 1000 or no rope.

          • Held demand was extortionate, so agreement under compulsion. Need only pay reasonable demand of 200 instead.

      • Threats to harm the threatened party or his loved ones

        • E.g. prosecution

        • Or publication of information

2. Causation

  • Threats to people

    • Barton v Armstrong [1976]:

      • Lord Cross:

        • If...

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