All due precautions shall be taken if the keeper of the Magazine and his or her assistants and by every licensed person and the persons employed in or about the premises in respect of an explosive store is being kept—
(a) to prevent fire or explosions in the Magazine or premises in respect of which an explosive store is being kept;
(b) to prevent unauthorised persons from having access to the Magazine or premises in respect of which an explosive store is being kept and to explosives stored in the Magazine or in such premises.