(1) The exercise of a power to give an authorisation under a provision of this Division is not invalid:
(a) because of a failure to consider Australia's international obligations, or the international obligations or domestic law of any other country; or
(b) because of a defective consideration of Australia's international obligations, or the international obligations or domestic law of any other country; or
(c) because the exercise of the power is inconsistent with Australia's international obligations.
(2) Subsection ( 1) is not to be taken to imply that the exercise of a power under any other provision of this Act is invalid for a reason of a kind specified in paragraph ( 1)(a), (b) or (c).