47 By their Defence, the Defendants deny the validity of the 2003 Will, essentially upon two grounds, namely, lack of testamentary capacity and undue pressure or influence on the Deceased by the Plaintiff to make a will excluding his siblings: Amended Defence paras 3, 8 and 9.
48 The legal principles upon which the validity of the 2003 Will must be decided are clear and not in dispute. They may be summarised briefly as follows.
49 Testamentary capacity is to be determined according to the classic test propounded by Cockburn CJ in Banks v Goodfellow (1870) LR 5 QB 549, at 565:
"It is essential to the exercise of such a power 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; and, with a view to the latter object, that no disorder of the mind shall poison his affections, pervert his sense of right, or prevent the exercise of his natural faculties - that no insane delusion shall influence his will in disposing of his property and bring about a disposal of it which, if the mind had been sound, would not have been made."
50 Delusions and other infirmities of the mind may be permanent or they may be interspersed with lucid intervals. Delusions, even if permanent and severe, may still not affect testamentary capacity if the testator is, nevertheless, able to satisfy the tests in Banks v Goodfellow . However, if a testator suffers from a delusion or other infirmity of mind which may affect testamentary capacity, the Court must be satisfied that he or she was not suffering from their influence at the time that the will was made; if the Court is not satisfied, it will not grant probate of the will: Banks v Goodfellow at 570; Timbury v Coffee (1941) 66 CLR 277, at 283; Bull v Fulton (1942) 66 CLR 295, at 299; Woodhead v Perpetual Trustee Co Ltd (1987) 11 NSWLR 267, at 273.
51 Where there is an issue whether the deceased knew and freely approved the contents of the will or may have been unduly influenced as to its terms, the Court proceeds according to the principles usefully summarised by Isaacs J in Nock v Austin (1918) 25 CLR 519, at 528 (omitting citations):
"The relevant law is not doubtful. It may be thus stated:- (1) In general, where there appears no circumstance exciting suspicion that the provisions of the instrument may not have been fully known to and approved by the testator, the mere proof of his capacity and of the fact of due execution of the instrument creates an assumption that he knew of and assented to its contents. (2) Where any such suspicious circumstances exist, the assumption does not arise, and the proponents have the burden of removing the suspicion by proving affirmatively by clear and satisfactory proof that the testator knew and approved of the contents of the document. (3) If in such a case the conscience of the tribunal, whose function it is to determine the fact upon a careful and accurate consideration of all the evidence on both sides, is not judicially satisfied that the document does contain the real intention of the testator, the Court is bound to pronounce its opinion that the instrument is not entitled to probate. (4) The circumstance that a party who takes a benefit wrote or prepared the will is one which should generally arouse suspicion and call for the vigilant and anxious examination by the Court of the evidence as to the testator's appreciation and approval of the contents of the will. (5) But the rule does not go further than requiring vigilance in seeing that the case is fully proved. It does not introduce a disqualification. (6) Nor does the rule require as a matter of law any particular species of proof to satisfy the onus. (7) The doctrine that suspicion must be cleared away does not create 'a screen' behind which fraud or dishonesty may be relied on without distinctly charging it."
52 In the present case, Mr Locke of Counsel, in his capable argument on behalf of the Plaintiff, does not dispute that a suspicion as to the validity of the 2003 Will is raised by reason of the infirmity and mental condition of the Deceased, and by reason of the circumstances in which Robert made the will for the Deceased.
53 Indeed, it may be fairly said that the Plaintiff has been, at best, half-hearted in this case in his endeavour to obtain probate of the 2003 Will. Clearly, he fully appreciates that he would be far better off financially if the 2003 Will were not granted probate and the 1998 Will prevailed over the 2002 Wills.
54 I am very far from satisfied that the Plaintiff has dispelled the suspicions which arise as to the Deceased's testamentary capacity at the time of making of the 2003 Will and as to her full knowledge and free assent to its terms. My reasons are as follows.
55 The expert evidence of the two psychiatrists called by the parties, Drs Carne and Bell, is of no real assistance in assessing the Deceased's testamentary capacity. Both frankly agreed that there was scant medical evidence upon which accurate psychiatric assessment could be founded. Accordingly, their opinions were necessarily tentative. I prefer to rely on the evidence of those who actually saw the Deceased in the last week of her life.
56 The evidence of the Deceased's children other than Robert gives a description of the Deceased at 3 March 2003 as a person close to death: extremely feeble, non-responsive and incapable of conversing to any real degree. Robert gives a description of the Deceased as capable of engaging in detailed conversation and, according to his first version of events, spontaneously expressing a desire to make a will in favour of her grandchildren, who had not been the direct subject of her testamentary bounty in previous wills.
57 The description of the Deceased which the Plaintiff gives is not in conformity with the medical evidence as to the Deceased's condition at that time; the evidence of the other witnesses is far more probable and I prefer it.
58 I take into account that: