24Explosives factories, magazines and stores
(1)The grounds on which the Secretary of State may reject an application for a licence under section 6 of the [1875 c. 17.] Explosives Act 1875 (new explosives factories and magazines) shall include the ground that the establishment of the factory or magazine in question is undesirable in the interests of safeguarding national security or protecting public safety; and a licence granted under that section may be withdrawn by him on that ground at any time before it comes into force.
(2)The Secretary of State may also refuse a licence under section 15 or registration under section 21 of that Act (explosives stores and other premises for keeping explosives) on the ground that the establishment of the store or, as the case may be, the keeping of explosives on the premises in question is undesirable in the interests of safeguarding national security or protecting public safety.