Wills Act 1968

A document, or a part of a document, purporting to embody testamentary intentions of a deceased person shall, notwithstanding that it has not been executed in accordance with the formal requirements of this Act, constitute a will of the deceased person, an amendment of the will of the deceased person or a revocation of the will of the deceased person if the Supreme Court is satisfied that the deceased person intended the document or part of the document to constitute his or her will, an amendment of his or her will or the revocation of his or her will respectively.

In forming a view of whether a deceased person intended a document or a part of a document to constitute his or her will, an amendment of his or her will or a revocation of his or her will, the Supreme Court may, in addition to having regard to the document, have regard to—

any evidence relating to the manner of execution of the document; or

any evidence of the testamentary intentions of the deceased person, including evidence (whether admissible before the commencement of this section or not) of statements made by the deceased person.