(1) Where a body of persons is convicted of an offence under this Act,

(a) in the case of a body corporate, every director or officer of that body corporate

shall be deemed to have committed that offence; and

(b) in the case of a partnership or a firm every partner of the partnership or firm shall be deemed to have committed that offence, and on conviction is liable to a fine not exceeding five hundred penalty units or, as appropriate, to a term of imprisonment not exceeding two years or to both the fine and the imprisonment.

(2) A person shall not be convicted of an offence under subsection (1) if it is proved that the offence was committed without that person's knowledge, and that care and due diligence was exercised to prevent the commission of the offence having regard to the circumstances.