,PLEASE USE THIS DOCUMENT AS A GUIDE TO ANSWER YOUR ASSIGNMENT
A WILL MADE DURING A LUCID INTERVAL BY AN INSANE PERSON
by
[FULL NAMES AND SURNAME OF STUDENT]
(YOUR STUDENT NUMBER)
Submitted in partial fulfilment of the requirements for the degree
BACHELOR OF LAWS
in the
DEPARTMENT OF CRIMINAL AND PROCEDURAL LAW
SCHOOL OF LAW
UNIVERSITY OF SOUTH AFRICA
SUPERVISOR: PROF MM MONYAKANE
RRLLB81 ASSESSMENT 2 / FINAL PORTFOLIO
(DUE DATE)
, ABSTRACT
The execution of a valid will requires that the testator possess testamentary capacity at the time of
making the will. Section 4 of the Wills Act 7 of 1953 provides that no person mentally incapable of
appreciating the nature and effect of his or her act shall be capable of making a will. This legislative
provision codifies the common law position that an insane person lacks the legal capacity to execute
a valid testamentary instrument. However, the law has long recognised that insanity is not
necessarily a permanent condition; a person who is generally insane may experience periods of
lucidity during which mental clarity returns and testamentary capacity is temporarily restored. The
concept of a lucid interval thus occupies a complex position within the law of succession, offering
the possibility that a will executed by an otherwise insane person may nevertheless be valid if made
during such a period.
This research examines the legal framework governing the execution of wills during lucid intervals
by persons who are generally insane. It analyses the relevant provisions of the Wills Act and the
Intestate Succession Act, together with the common law principles that have developed through
judicial decisions. Two landmark cases are subjected to detailed examination: Tregea v Godart 1939
AD 16, in which the Appellate Division articulated the principles governing proof of lucid intervals,
and Essop v Mustapha and Essop 1988 (4) SA 213 (D), which applied and refined those principles in
the context of contested testamentary capacity. The research engages with scholarly perspectives,
particularly the works of Sonnekus on execution under suspicious circumstances and van der Linde
on the formal requirements for validity, to assess the practical challenges that arise in disputes
concerning lucid intervals. Central to the inquiry are two significant legal contentions: first, that
evidence of a period of lucid interval cannot be established retrospectively; and second, that disputes
over the quality and sufficiency of evidence of lucid intervals frequently arise between those who
expected the insane person to die intestate and those who stand to benefit under the contested will.
The research concludes with findings on the state of the law and offers opinions on whether the
current framework achieves an appropriate balance between the need for certainty in succession
matters and the respect for individual testamentary autonomy.
KEYWORDS
Testamentary capacity; lucid interval; insanity; wills; mental incapacity; Wills Act 7 of 1953;
Intestate Succession Act 81 of 1987; burden of proof; Tregea v Godart; Essop v Mustapha; execution
of wills; suspicious circumstances
ABBREVIATIONS AND ACRONYMS
Abbreviation Meaning
AD Appellate Division
D Durban and Coast Local Division
De Jure De Jure Law Journal
SA South African Law Reports
TSAR Tydskrif vir die Suid-Afrikaanse Reg / Journal of South African Law
s Section (of an Act)
ss Sections (plural)
, 1. INTRODUCTION
1.1. Overview
The law of succession governs the distribution of a deceased person's estate, giving effect to the
testamentary wishes expressed in a valid will or, in the absence of such a will, applying the default
rules of intestate succession.¹ Central to the validity of any will is the requirement that the testator
possess testamentary capacity at the time of its execution. This requirement reflects a fundamental
principle of private law: that legal acts of significance, particularly those that dispose of property
upon death, should be undertaken by persons capable of understanding the nature and consequences
of their actions.²
Section 4 of the Wills Act 7 of 1953 provides that "[n]o person mentally incapable of appreciating
the nature and effect of his or her act shall be capable of making a will."³ This provision codifies the
common law position while leaving room for judicial interpretation of what constitutes mental
incapacity and how it is to be established. The Act does not require that a person be formally
declared insane by a court; any evidence establishing insanity is sufficient to negate testamentary
capacity.⁴ Conversely, the burden of proving insanity rests upon the person who alleges it, reflecting
the common law presumption that every person is sane until the contrary is proved.⁵
The position of a person who is generally insane but who experiences periods of lucidity presents
particular challenges for the law of succession. During a lucid interval, such a person may
temporarily regain the mental clarity necessary to appreciate the nature and effect of their actions,
including the execution of a will.⁶ The law recognises that a will made during such a period may be
valid, notwithstanding the testator's general condition of insanity.⁷ This recognition reflects a
commitment to respecting individual testamentary autonomy while maintaining appropriate
safeguards against the exploitation of vulnerable persons.⁸
However, the concept of a lucid interval gives rise to significant legal and evidentiary difficulties.
Those who expected the insane person to die intestate—typically the heirs who would benefit under
the Intestate Succession Act 81 of 1987—may challenge the validity of the will, while the
beneficiaries named in the will urge its promotion.⁹ Disputes may arise concerning whether a lucid
interval in fact occurred, whether the will was executed during such an interval, and whether the
evidence adduced is sufficient to establish these facts.¹⁰ Two particular legal contentions frame these
disputes: first, that evidence of a period of lucid interval cannot be established retrospectively; and
second, that there may be genuine disagreement about the quality and sufficiency of evidence of the
lucid interval.¹¹
1.2. Background to the Research Problem Statement
The research problem emerges from the inherent tension between two competing principles within
the law of succession. On the one hand, the law respects the testamentary autonomy of individuals,
permitting them to dispose of their property as they wish, provided they possess the requisite mental
capacity.¹² On the other hand, the law protects vulnerable persons from exploitation and ensures that
estates are distributed according to clear and ascertainable rules, whether by will or by intestate
succession.¹³
A WILL MADE DURING A LUCID INTERVAL BY AN INSANE PERSON
by
[FULL NAMES AND SURNAME OF STUDENT]
(YOUR STUDENT NUMBER)
Submitted in partial fulfilment of the requirements for the degree
BACHELOR OF LAWS
in the
DEPARTMENT OF CRIMINAL AND PROCEDURAL LAW
SCHOOL OF LAW
UNIVERSITY OF SOUTH AFRICA
SUPERVISOR: PROF MM MONYAKANE
RRLLB81 ASSESSMENT 2 / FINAL PORTFOLIO
(DUE DATE)
, ABSTRACT
The execution of a valid will requires that the testator possess testamentary capacity at the time of
making the will. Section 4 of the Wills Act 7 of 1953 provides that no person mentally incapable of
appreciating the nature and effect of his or her act shall be capable of making a will. This legislative
provision codifies the common law position that an insane person lacks the legal capacity to execute
a valid testamentary instrument. However, the law has long recognised that insanity is not
necessarily a permanent condition; a person who is generally insane may experience periods of
lucidity during which mental clarity returns and testamentary capacity is temporarily restored. The
concept of a lucid interval thus occupies a complex position within the law of succession, offering
the possibility that a will executed by an otherwise insane person may nevertheless be valid if made
during such a period.
This research examines the legal framework governing the execution of wills during lucid intervals
by persons who are generally insane. It analyses the relevant provisions of the Wills Act and the
Intestate Succession Act, together with the common law principles that have developed through
judicial decisions. Two landmark cases are subjected to detailed examination: Tregea v Godart 1939
AD 16, in which the Appellate Division articulated the principles governing proof of lucid intervals,
and Essop v Mustapha and Essop 1988 (4) SA 213 (D), which applied and refined those principles in
the context of contested testamentary capacity. The research engages with scholarly perspectives,
particularly the works of Sonnekus on execution under suspicious circumstances and van der Linde
on the formal requirements for validity, to assess the practical challenges that arise in disputes
concerning lucid intervals. Central to the inquiry are two significant legal contentions: first, that
evidence of a period of lucid interval cannot be established retrospectively; and second, that disputes
over the quality and sufficiency of evidence of lucid intervals frequently arise between those who
expected the insane person to die intestate and those who stand to benefit under the contested will.
The research concludes with findings on the state of the law and offers opinions on whether the
current framework achieves an appropriate balance between the need for certainty in succession
matters and the respect for individual testamentary autonomy.
KEYWORDS
Testamentary capacity; lucid interval; insanity; wills; mental incapacity; Wills Act 7 of 1953;
Intestate Succession Act 81 of 1987; burden of proof; Tregea v Godart; Essop v Mustapha; execution
of wills; suspicious circumstances
ABBREVIATIONS AND ACRONYMS
Abbreviation Meaning
AD Appellate Division
D Durban and Coast Local Division
De Jure De Jure Law Journal
SA South African Law Reports
TSAR Tydskrif vir die Suid-Afrikaanse Reg / Journal of South African Law
s Section (of an Act)
ss Sections (plural)
, 1. INTRODUCTION
1.1. Overview
The law of succession governs the distribution of a deceased person's estate, giving effect to the
testamentary wishes expressed in a valid will or, in the absence of such a will, applying the default
rules of intestate succession.¹ Central to the validity of any will is the requirement that the testator
possess testamentary capacity at the time of its execution. This requirement reflects a fundamental
principle of private law: that legal acts of significance, particularly those that dispose of property
upon death, should be undertaken by persons capable of understanding the nature and consequences
of their actions.²
Section 4 of the Wills Act 7 of 1953 provides that "[n]o person mentally incapable of appreciating
the nature and effect of his or her act shall be capable of making a will."³ This provision codifies the
common law position while leaving room for judicial interpretation of what constitutes mental
incapacity and how it is to be established. The Act does not require that a person be formally
declared insane by a court; any evidence establishing insanity is sufficient to negate testamentary
capacity.⁴ Conversely, the burden of proving insanity rests upon the person who alleges it, reflecting
the common law presumption that every person is sane until the contrary is proved.⁵
The position of a person who is generally insane but who experiences periods of lucidity presents
particular challenges for the law of succession. During a lucid interval, such a person may
temporarily regain the mental clarity necessary to appreciate the nature and effect of their actions,
including the execution of a will.⁶ The law recognises that a will made during such a period may be
valid, notwithstanding the testator's general condition of insanity.⁷ This recognition reflects a
commitment to respecting individual testamentary autonomy while maintaining appropriate
safeguards against the exploitation of vulnerable persons.⁸
However, the concept of a lucid interval gives rise to significant legal and evidentiary difficulties.
Those who expected the insane person to die intestate—typically the heirs who would benefit under
the Intestate Succession Act 81 of 1987—may challenge the validity of the will, while the
beneficiaries named in the will urge its promotion.⁹ Disputes may arise concerning whether a lucid
interval in fact occurred, whether the will was executed during such an interval, and whether the
evidence adduced is sufficient to establish these facts.¹⁰ Two particular legal contentions frame these
disputes: first, that evidence of a period of lucid interval cannot be established retrospectively; and
second, that there may be genuine disagreement about the quality and sufficiency of evidence of the
lucid interval.¹¹
1.2. Background to the Research Problem Statement
The research problem emerges from the inherent tension between two competing principles within
the law of succession. On the one hand, the law respects the testamentary autonomy of individuals,
permitting them to dispose of their property as they wish, provided they possess the requisite mental
capacity.¹² On the other hand, the law protects vulnerable persons from exploitation and ensures that
estates are distributed according to clear and ascertainable rules, whether by will or by intestate
succession.¹³
