(1) Without prejudice to the powers of Parliament, but subject to the provisions of this section, where any period of public emergency exists, the Governor General may, due regard being had to the circumstances of any situation likely to arise or exist during such period, make regulations for the purpose of dealing with that situation and issue orders and instructions for the purpose of the exercise of any powers conferred on him or her or any other person by any law referred to in subsection (3) or instrument made under this section or any such law.
(2) Without prejudice to the generality of subsection (1) regulations made under that subsection may make provision for the detention of persons.
(3) A law enacted by Parliament that is passed during a period of public emergency and is expressly declared to have effect only during that period or any regulation made under subsection (1) shall have effect even though inconsistent with sections 3 or 13 except in so far as its provisions may be shown not to be reasonably justifiable for the purpose of dealing with the situation that exists during that period.