Prohibition on creating conditions favourable to vectors
15.—(1)  A person must not create, or cause or permit to be created, any condition favourable to the propagation or harbouring of vectors.
(2)  Every person must comply with all such reasonable directions as may be given by the Director‑General or an authorised officer with a view to ensuring that such a condition does not arise or with a view to terminating the condition.
(3)  The directions may be given to the owner or occupier of any premises, vessel or aircraft and to any person therein, including the agents and servants of the owner or occupier.
(4)  If in any proceedings for a contravention of subsection (1) it is shown that the condition on any premises, vessel or aircraft is favourable to the propagation or harbouring of vectors, it is presumed, unless the contrary is proved, that the condition is created, or caused or permitted to be created, by the owner or occupier of the premises, vessel or aircraft.