(a) possession of the precursor for the purpose of the manufacture of a prohibited drug by the person in possession;
(b) possession of a precursor for the purpose of production of a prohibited drug by the person in possession;
(c) possession of a precursor for the purpose of manufacture of a prohibited drug by a person other than the person in possession;
(d) possession of a precursor for the purpose of production of a prohibited drug by a person other than the person in possession.
21 Duplicity in an indictment occurs where the charge, as stated, properly construed, charges the accused with having committed two or more separate offences: see Archbold: Criminal Pleading, Evidence and Practice, 44th Edition (1995), Vol 1, p75, cited in Walsh v Tattersall [1996] HCA 26; 188 CLR 77 at 84. The essence of the appellants' argument is that, by incorporating in a single charge an allegation that the appellants had possession of the precursor for manufacture of a prohibited drug either by themselves, or by another person, two separate offences were incorporated - that is, the offence of possession for the purpose of manufacture by themselves; and possession of the precursor for the purpose of manufacture of a prohibited drug by some other person.
22 In support of the argument counsel relied upon what was described as an "enlightening" decision of the English Court of Appeal in Mallon v Allen [1964] 1 QB 385, it being submitted (in written submissions) that the effect of that case was that:
"… where an indictment alleging a person had been 'permitted or allowed' to remain on premises was held to be bad, on the basis that two offences were alleged."
23 The submission significantly misstates what was held in that case. The statute there under consideration provided:
"No person who is apparently under the age of 18 years … shall be admitted to or allowed to remain on those premises …"
24 It can readily be seen that that statutory provision clearly created offences of two different characters, constituted by two different acts: admitting a person under the age of 18 years to licensed premises; and allowing a person under the age of 18 years to remain upon licensed premises. The conduct in each case is quite different. In the one case it is admitting a person of the prohibited age into licensed premises; in the other it is allowing a person of relevant age already in the licensed premises to remain there. It is the conduct which is the gist of the offence.
25 Reliance was also placed upon the decision of the High Court in Walsh v Tattersall. In that case, a single charge was brought under a statute which made an offence of obtaining by dishonest means any payment or other benefit under the statute. The defendant, Walsh, was charged with obtaining a series of payments or benefits by dishonest means. The payments or benefits were particularised.
26 It was there argued that the count was bad for duplicity as alleging a number of separate offences. Dawson and Toohey JJ rejected the argument. Their Honours noted that the prosecution case was not of a series of separate dishonest pretences, but that, as a result of, effectively, a single dishonest pretence, Walsh received multiple payments or benefits. The gist of the offence was the act of dishonesty in making a false pretence.
27 Gaudron and Gummow JJ decided the case on what they described as "an anterior question", and did not deal with the duplicity issue. Kirby J was of the opinion that the count was bad for duplicity.
28 The decision is of only the most marginal relevance. There is nothing in Walsh v Tattersall that throws any light on the present issue.
29 In my opinion the argument advanced on behalf of the appellants must fail. The essential element of the offence charged is possession of the precursor, accompanied by the relevant intention. It is not essential to the proof of that charge that the person in possession have a specific intent as to the identity of the individual or individuals who will manufacture or produce the prohibited drug; that is merely incidental. It may well be that an offender has possession of a precursor with intent that it be made into a prohibited drug without a final intention as to by whom the prohibited drug is to be made.
30 I would reject the first ground of appeal.