New South Wales Consolidated Acts(cf 1919 No 6, s 163E (3))
The Supreme Court may, on the application of a principal under a power of
attorney, confirm (whether in whole or in part) any power to do an act under
the power of attorney if it appears to the Court that the nature of the act
was not beyond the understanding of the principal through mental incapacity at
the time when the power was given.