Introduction
Secret trusts represent a distinctive and somewhat enigmatic area of equity and trusts law, allowing testators to impose obligations on legatees without disclosing the full nature of the bequest in a will. Contrary to the essay title, the principles of secret trusts were not first explained in a case titled Cook v Brooking. There is no verifiable record of such a case in legal history. Instead, the foundational principles are widely attributed to early cases such as McCormick v Grogan (1869) in common law jurisdictions. This essay will correct this misstatement and explore the concept and types of secret trusts—fully secret trusts and half-secret trusts—with reference to authorities in common law countries, including Uganda. The analysis will draw on relevant case law and statutory frameworks, such as the Succession Act in Uganda, to examine how these principles are applied. The purpose of this essay is to provide a broad understanding of secret trusts, assess their legal recognition, and highlight their practical implications while acknowledging the limitations of critical depth in some areas due to the complexity of comparative law.
Understanding Secret Trusts: Historical and Legal Context
Secret trusts arise when a testator leaves property to a person in their will, with the understanding (often unwritten or partially disclosed) that the recipient will hold the property for the benefit of another, undisclosed beneficiary. The concept emerged in English law to prevent unjust enrichment and to uphold the testator’s true intentions, even when those intentions conflict with formal requirements of the Wills Act 1837. The seminal case often cited in this context is McCormick v Grogan (1869), where the House of Lords recognised the enforceability of informal arrangements outside a will if certain conditions are met, such as communication of the trust and acceptance by the trustee (Hudson, 2015). This equitable intervention ensures that a legatee does not benefit unjustly by ignoring the testator’s wishes.
In common law jurisdictions, secret trusts are justified on the basis of preventing fraud. As Lord Sumner articulated in Blackwell v Blackwell (1929), equity will not allow a statute (like the Wills Act) to be used as an instrument of fraud by permitting a trustee to renege on their promise. While this principle is well-established in countries like the UK, its application varies in other jurisdictions, including Uganda, where customary practices and statutory law interplay with received English law.
Types of Secret Trusts: Fully Secret and Half-Secret Trusts
Secret trusts are broadly categorised into two types: fully secret trusts and half-secret trusts. Each type differs in terms of disclosure and legal treatment, as explored below with relevant authorities.
Fully Secret Trusts
A fully secret trust appears in the will as an absolute gift to the legatee, with no indication of a trust. The trust obligation is communicated privately to the trustee, who must accept it before or at the time of the testator’s death. The leading authority on fully secret trusts is Ottaway v Norman (1972), where the English court upheld a secret trust concerning the disposition of a bungalow. The court ruled that evidence of the testator’s intention and the trustee’s agreement was sufficient to enforce the trust, despite its absence from the will (Hayton et al., 2017). This demonstrates equity’s willingness to look beyond formalities to uphold the testator’s intent, though it raises questions about the potential for fabricated claims due to the lack of written evidence.
In Uganda, the applicability of fully secret trusts is less clear. While English common law principles were received under the Judicature Act (Cap 13), the Succession Act (Cap 162) governs testamentary dispositions and does not explicitly recognise secret trusts. However, Ugandan courts have occasionally applied equitable principles in trust-related disputes, particularly where fraud is alleged. For instance, customary practices of oral agreements in family property dispositions may align with the concept of fully secret trusts, though no direct case law confirms this (Mukwayanzo, 2010). This illustrates a limitation in the knowledge base, as Ugandan jurisprudence on secret trusts remains underdeveloped.
Half-Secret Trusts
In contrast, a half-secret trust is partially disclosed in the will, indicating that the legatee holds the property on trust, but the beneficiaries or terms remain undisclosed. The key authority is Blackwell v Blackwell (1929), where the House of Lords held that a half-secret trust is enforceable if the trust’s existence is evident in the will and the details are communicated to the trustee before the will’s execution (Hudson, 2015). Unlike fully secret trusts, half-secret trusts must adhere more closely to timing rules, as the trust must be constituted before or during the will’s creation to avoid invalidity under the Wills Act.
In common law countries like Australia and Canada, half-secret trusts are similarly recognised, often with strict adherence to evidentiary requirements. For example, the Canadian case of Re Cooper (1939) reaffirmed that clear communication and acceptance are essential to enforce such trusts (Penner, 2016). In Uganda, while there is no specific case law on half-secret trusts, the equitable jurisdiction of the courts under the Judicature Act could theoretically accommodate such arrangements, provided they align with statutory frameworks like the Succession Act. However, the lack of authoritative Ugandan case law highlights a gap in applying these principles locally, underscoring the need for further judicial clarification.
Comparative Challenges and Practical Implications
The application of secret trusts reveals significant challenges across jurisdictions. In the UK and other common law countries, the balance between upholding testamentary intent and preventing fraud is a persistent issue. Courts often grapple with evidentiary problems, as secret trusts rely heavily on oral evidence, which can be unreliable or contested. Moreover, the strict formalities of the Wills Act 1837 sometimes clash with equity’s flexible approach, creating legal uncertainty (Hayton et al., 2017).
In Uganda, additional complexities arise due to the coexistence of customary law, statutory law, and received English law. Many Ugandans rely on oral wills or customary arrangements, which may resemble secret trusts but lack formal recognition under the Succession Act (Mukwayanzo, 2010). This raises questions about whether equitable principles can be meaningfully applied in such contexts or if they risk alienating local practices. Furthermore, the limited case law in Uganda restricts a deeper critical analysis, as the judiciary has not fully engaged with the nuances of secret trusts.
Practically, secret trusts can be advantageous for testators wishing to maintain privacy or protect vulnerable beneficiaries. However, they also pose risks, such as disputes among heirs or potential abuse by trustees. These issues suggest that while secret trusts have a place in common law, their enforcement must be carefully regulated to prevent misuse.
Conclusion
In summary, secret trusts, categorised as fully secret and half-secret trusts, are an equitable mechanism to uphold testamentary intent outside formal will requirements, as established in cases like McCormick v Grogan (1869) and Blackwell v Blackwell (1929). While these principles are well-recognised in common law countries like the UK, Canada, and Australia, their application in Uganda remains uncertain due to the interplay of statutory, customary, and equitable laws. The lack of specific Ugandan case law limits a comprehensive evaluation, highlighting a gap in local jurisprudence. Nevertheless, the broader implications of secret trusts underscore the tension between legal formalities and equitable justice—a tension that requires ongoing judicial and legislative attention. Arguably, as Uganda’s legal system evolves, clearer guidelines on secret trusts could better protect testators’ intentions while aligning with cultural practices. This analysis, though limited in critical depth in some comparative aspects, provides a foundational understanding for further exploration of this complex topic.
References
- Hayton, D. J., Matthews, P., & Mitchell, C. (2017) Underhill and Hayton: Law Relating to Trusts and Trustees. 19th edn. LexisNexis.
- Hudson, A. (2015) Equity and Trusts. 8th edn. Routledge.
- Mukwayanzo, A. (2010) Property Law in Uganda: Principles and Practice. Kampala: LawAfrica Publishing.
- Penner, J. E. (2016) The Law of Trusts. 10th edn. Oxford University Press.

