Ratio Decidendi
To make a valid will, the testator must: (1) understand the nature of the act and its effects; (2) understand the extent of the property being disposed of; (3) comprehend and appreciate the claims to which they ought to give effect; and (4) not be affected by any disorder of the mind or insane delusion that influences the dispositions made.
তথ্য
John Banks made a will leaving his estate to his niece, Margaret Goodfellow. Banks suffered from delusions, believing he was pursued by devils and a deceased person. After his death, the validity of the will was challenged on the ground that Banks lacked testamentary capacity due to his mental condition.
রায়ের সারসংক্ষেপ
Cockburn CJ held that the will was valid. Although Banks suffered from delusions, these delusions did not affect his testamentary dispositions. The court established the classic four-part test for testamentary capacity that remains the law today. The test requires understanding of the nature of the act, the extent of the estate, the claims of potential beneficiaries, and freedom from delusions that influence the will.
মূল উদ্ধৃতি
"It is essential... that a testator shall understand the nature of the act and its effects; shall understand the extent of the property of which he is disposing; shall be able to comprehend and appreciate the claims to which he ought to give effect."
— Cockburn CJ
পরবর্তী ব্যবহার
Remains the leading authority on testamentary capacity. Applied and affirmed in Key v Key [2010], Burgess v Hawes [2013], and countless other cases. The test was adapted for the modern context in Walker v Badmin [2015].