TL;DR: Using various databases, legislations dealing with law of contract, law of succession/inheritance, and law relating to testamentary capacity (wills) of all UN Member states were studied.
Abstract: Discrimination against people with mental illness is rife across the globe. Among different types of discrimination is the policy in many countries where persons with mental illness are forbidden to inherit property, and they are not able to enter into a contract in a large number of countries. Using various databases, legislations dealing with law of contract, law of succession/inheritance, and law relating to testamentary capacity (wills) of all UN Member states (193 countries) were studied. With respect to federal countries, the laws of the most populous state as a representative state in the respective country were studied. Only 40 Member States (21%) recognize/allow persons with mental health problems to enter into contracts. Of these, however, only 16 Member States (9%) recognize the right of persons with mental health problems to enter into a contract without any restrictions. The remaining 24 Member States (12%) allow a contract entered into by a person with mental health problems to be invalidated under certain conditions. These countries also make the validity of the contract subject to the capacity to consent or based on the level of understanding of the person with mental health problems. They may allow persons with mental health problems to enter into contracts only for transactions of an insignificant nature or of personal rights. Only 9% of the countries allow people with mental illness to enter into contracts in an unrestricted way. Furthermore, there remain variations between high income and low income states. In spite of international laws in many countries, laws remain discriminatory.
TL;DR: Geriatric psychiatrists and other experts will be asked to provide expert assessment of the testamentary capacity of individuals whose Wills are being challenged retrospectively.
TL;DR: In this paper, a subcommittee of the International Psychogeriatric Association (IPA) task force on "Testamentary Capacity and Undue Influence" was formed to establish guidelines for contemporaneous assessment of testamentary capacity.
Abstract: Background: Challenges to wills on the basis of lack of testamentary capacity and/or undue influence are likely to increase over the next generation. Since contemporaneous assessment of testamentary capacity can be a powerful influence on the outcome of such challenges, there will be an associated increase in requests for expert assessment of testamentary capacity. There is a need to provide such potential experts with the knowledge and guidelines necessary to conduct assessments that will be helpful to the judicial system. Methods: A subcommittee of the International Psychogeriatric Association (IPA) task force on "Testamentary Capacity and Undue Influence" was formed to establish guidelines for contemporaneous assessment of testamentary capacity. Results: The task-specific criteria for testamentary capacity as outlined by Lord Chief Justice Cockburn in the well-known Banks v. Goodfellow case are described. Additional issues are identified for probing and documentation. This is designed to determine whether the testator can formulate a coherent, rational testamentary plan that connects his/her beliefs, values and relationships with the proposed disposition of assets. Rules of engagement by the expert assessor are defined as well as an approach to the clinical examination for testamentary capacity resulting in a clear and relevant report. Conclusion: Guidelines for experts who are asked to provide a contemporaneous opinion on testamentary capacity should help to inform disputes resulting from challenges to wills. A consistent clinical approach will help the courts to make their determinations.
TL;DR: The undue influence doctrine paradoxically supports freedom of testation by permitting individuals of marginal mental capacity to write valid wills by providing courts with an alternate avenue of intervention and allowing courts to invalidate wills that the court finds shocking or objectionable.
TL;DR: In order for the result of a medical assessment of testamentary capacity to be legally valid, it is imperative that medical practitioners have adequate guidance on what is expected of them in their assessment.