4. Drugs and plants to which Act applies
(1) The drugs to which this Act applies are ¾
(a) drugs of addiction;
(b) specified drugs; and
(c) whether or not they are also drugs of addiction or specified drugs, the drugs specified in Schedule I.
(2) Subject to subsection (3), the plants to which this Act applies are ¾
(a) prohibited plants as defined by section 5 of the Poisons Act 1964; and
(b) whether or not they are also prohibited plants as defined by section 5 of the Poisons Act 1964, the plants specified in Schedule II.
(3) This Act does not apply to the non-viable seeds of the opium poppy Papaver somniferum.