11. Presumptions
Feedback & supportWhere any corrosive or explosive substance is found in or on any premises the occupier of such premises shall be deemed to be in possession of such substance unless he shall prove that some other person was in possession thereof, or that he had no knowledge or reasonable means of knowledge that such substance was in or on such premises and that he had taken all reasonable precautions against such substance being kept in or on such premises.
Corrosive and Explosive Substances and 11
Offensive Weapons
In any prosecution under section 3 or 5 it shall be presumed until the contrary be proved that any substance was intended to be used for the purpose of causing hurt if—
the quantity of the substance found exceeded the quantity reasonably required to be kept by the accused for ordinary use and consumption in his household or establishment and (in the case of a person carrying on business)
exceeded the quantity reasonably required to be kept in the ordinary course of such business;
such substance was kept concealed or in a place other than that in which it might reasonably be expected to be kept for domestic or in the case of a person carrying on business for business purposes; or
such substances were kept in containers other than containers of a kind in which such substances are ordinarily kept for domestic or in the case of a person carrying on business, for business purposes.