Article 21 Defence available to owners, occupiers and agents
In any proceedings under this Order against the owner, occupier, or agent of a quarry in respect of an offence it shall be a defence for the person charged to prove—
(a)
that he was not in the habit of taking, and did not in respect of the matters in question take, any part in the management of the quarry; and
(b)
that the offence was committed without his knowledge, consent or connivance.