The Prosecutor relied on straightforward criminal enterprise.
146 Tangye was further quoted with approval in Osland. In Osland, McHugh J (Kirby, Callinan JJ concurring) held at [72] - [75]:
However, there is a third category where a person was not only present at the scene with the person who committed the acts alleged to constitute the crime but was there by reason of a pre-concert or agreement with that person to commit the crime. In that category, the liability of each person present as the result of the concert is not derivative but primary. He or she is a principal in the first degree. In that category each of the persons acting in concert is equally responsible for the acts of the other or others. The general principle was clearly stated in R v Lowery and King (No 2) by Smith J who directed the jury in the following terms:
"The law says that if two or more persons reach an understanding or arrangement that together they will commit a crime and then, while that understanding or arrangement is still on foot and has not been called off, they are both present at the scene of the crime and one or other of them does, or they do between them, in accordance with their understanding or arrangement, all the things that are necessary to constitute the crime, they are all equally guilty of that crime regardless of what part each played in its commission. In such cases they are said to have been acting in concert in committing the crime."
In that case, his Honour directed the jury that "they are all equally guilty of that crime". But as subsequent cases show, and as principle requires, the correct statement is that they are all equally liable for the acts that constitute the actus reus of the crime. The principle is accurately stated by Brett, Waller and Williams in the 8th edition of their work on Criminal Law:
"[E]ven if only one participant performed the acts constituting the crime, each will be guilty as principals in the first degree if the acts were performed in the presence of all and pursuant to a preconceived plan. In this case, the parties are said to be acting in concert." [emphasis added]
So far as is presently relevant, these principles were accurately and more fully stated by the New South Wales Court of Criminal Appeal in Tangye. The Court said:
"(1) The law is that, where two or more persons carry out a joint criminal enterprise, each is responsible for the acts of the other or others in carrying out that enterprise. The Crown must establish both the existence of that joint criminal enterprise and the participation in it by the accused.
(2) A joint criminal enterprise exists where two or more persons reach an understanding or arrangement amounting to an agreement between them that they will commit a crime. The understanding or arrangement need not be express, and its existence may be inferred from all the circumstances. It need not have been reached at any time before the crime is committed. The circumstances in which two or more persons are participating together in the commission of a particular crime may themselves establish an unspoken understanding or arrangement amounting to an agreement formed between them then and there to commit that crime.
(3) A person participates in that joint criminal enterprise either by committing the agreed crime itself or simply by being present at the time when the crime is committed".
In accordance with the New South Wales practice, the Court referred to "carrying out a criminal enterprise" rather than acting in concert. The principles, however, are the same.
As a result, a person may be found guilty of murder although he or she did not commit the acts which physically caused the death of the victim and the person who did is found guilty only of manslaughter. In R v Howe , all their Lordships were of the opinion that R v Richards , which had held that the person who did not perform the acts could not be guilty of a more serious charge than the actual perpetrator, was wrongly decided. Lord Mackay said:
"[W]here a person has been killed and that result is the result intended by another participant, the mere fact that the actual killer may be convicted only of the reduced charge of manslaughter for some reason special to himself does not, in my opinion in any way, result in a compulsory reduction for the other participant."
This statement is conclusive in England, at all events, in showing that it is the acts, and not the crime, of the actual perpetrator which are attributed to the person acting in concert. If the latter person has the relevant mens rea, he or she is guilty of the principal offence because the actus reus is attributed to him or her by reason of the agreement and presence at the scene. It is irrelevant that the actual perpetrator cannot be convicted of that crime because he or she has a defence such as lack of mens rea, self-defence, provocation, duress or insanity. [footnotes omitted]
147 McHugh J considers a number of further authorities before concluding at [93]:
Where the parties are acting as the result of an arrangement or understanding, there is nothing contrary to the objects of the criminal law in making the parties liable for each other's acts and the case for doing so is even stronger when they are at the scene together. If any of those acting in concert but not being the actual perpetrator has the relevant mens rea, it does not seem wrong in principle or as a matter of policy to hold that person liable as a principal in the first degree. Once the parties have agreed to do the acts which constitute the actus reus of the offence and are present acting in concert when the acts are committed, the criminal liability of each should depend upon the existence or non-existence of mens rea or upon their having a lawful justification for the acts, not upon the criminal liability of the actual perpetrator. So even if the actual perpetrator of the acts is acquitted, there is no reason in principle why others acting in concert cannot be convicted of the principal offence. They are responsible for the acts (because they have agreed to them being done) and they have the mens rea which is necessary to complete the commission of the crime.
148 While Gaudron and Gummow JJ dissented in Osland on another issue (the principle of causation), at [27] they also agreed on the reasoning of McAuliffe v R :
More to the point, principle dictates the conclusion that those who form a common purpose to commit a crime together are liable as principals if they are present when the crime, or any other crime within the scope of the common purpose is committed by one or more of them. The crime having been committed in accordance with the continuing understanding or arrangement, all are equally guilty as principals regardless of the part played by each. That result follows from the reasoning in McAuliffe v R . Indeed, that reasoning would appear not to require presence at the scene of all parties to the continuing common purpose if the criteria specified in that reasoning otherwise are satisfied.
149 For complete clarity I observe that in Osland, the principles stated by Hunt CJ in Tangye were truncated. Principles 1 and 2 are quoted exactly in Osland. Principles 3 and 4 in Tangye at 557 are as follows:
A person participates in that joint criminal enterprise either by committing the agreed crime itself or simply by being present at the time when the crime is committed, and (with knowledge that the crime is to be or is being committed) by intentionally assisting or encouraging another participant in the joint criminal enterprise to commit that crime. The presence of that person at the time when the crime is committed and a readiness to give aid if required is sufficient to amount to an encouragement to the other participant in the joint criminal enterprise to commit the crime.
If the agreed crime is committed by one or other of the participants in that joint criminal enterprise, all of the participants in that enterprise are equally guilty of the crime regardless of the part played by each in its commission.
150 As submitted by the Prosecutor, joint criminal enterprise is not the same charge as one based on secondary participation based on common purpose or accessorial liability, as the Prosecutor described it. An example of the latter is a charge of "aid and abet" considered in Giorgianni v R (1984 -1985) 156 CLR 473 and "extended common purpose" in R v Taufahema, (2007) 234 ALR 1, both cases relied on by the Defendants in the "no case to answer" submissions. A charge based on accessorial liability requires that the prosecutor prove that the defendant knew of all the facts and circumstances which must be established to prove that the principal committed the offence. That is not the basis on which the Prosecutor has charged Mr Petro.
151 Both Tangye (charges of maliciously inflicting grievous bodily harm and assault) and Osland (charge of murder) concern offences which included mens rea as an element of the offence, unlike this strict liability offence arising under s 125(1) of the EP&A Act. There is reference to having the necessary mens rea in the judgment of McHugh J in Osland at [93] par 147 above. Consequently, the issue arises of whether the common law offence of joint criminal enterprise can apply to a statutory charge under s 125(1) of the EP&A Act where the offence charged is a strict liability offence and mens rea, meaning intention to commit the crime, is not an essential element in proving the offence. In the absence of an intention to commit a crime it is difficult conceptually to conceive of a charge based on establishing knowledge of and reaching an agreement to commit a crime, as the Defendants submitted.
152 Given that the Prosecutor is seeking to have common law criminal liability principles apply to a statutory offence, it is first necessary to consider cases where common law principles of criminal liability for acts committed by others has been applied to strict liability offences. In Tiger Nominees the Court of Criminal Appeal (Gleeson CJ, Mahoney JA and Campbell J concurring) held that as a matter of statutory construction s 16(1) of the Clean Waters Act 1970 may operate to make a master vicariously responsible for the conduct of an employee. In arriving at that conclusion the Chief Justice considered the development of common law principles in relation to the imposition of criminal responsibility as a principal for the acts of others, see page 74. Principles were derived from offences described as "public welfare offences". Examples he gave were fair trading, consumer protection and environmental protection laws. This was held by his Honour to be an appropriate context for construing legislation on the question of whether Parliament had expressly or by implication created a criminal offence for which a person could be found vicariously responsible. Such statutory offences must be capable of vicarious commission.
153 Principals have been found guilty in this Court based on vicarious liability for acts committed by agents in relation to s 125(1) offences, see Power v Penthill House Pty Ltd (1993) 80 LGERA 247 at 252-254, Mosman Municipal Council v Waratah Village Partners Pty Ltd [2002] NSWLEC 184 at 37-39. As noted in Power v Penthill, s 125 is the only provision creating offences under the EP&A Act.
154 Vicarious liability applying to criminal offences which are strict liability was considered by Lloyd J in Greentree in relation to a charge of illegally clearing native vegetation under the Native Vegetation and Conservation Act 1997. The Defendants relied on this decision because it confirmed the principle that principals are not vicariously liable for the acts of independent contractors. I note that finding is subject to two exceptions identified by Lloyd J at [92]. The Defendants considered this supported their argument that there cannot be liability on the basis of joint criminal enterprise. As noted by Lloyd J in Greentree at [93] the question of whether vicarious liability (in that case) exists "ultimately depends on the circumstances of the case and the proper construction of the relevant statutory provision".
155 The same reasoning concerning the nature of the statutory scheme which was applied in Power v Penthill to conclude that vicarious liability for s 125(1) offences and in Tiger Nominees to an offence under the Clean Waters Act is also applicable in relation to a charge under s 125(1) based on joint criminal enterprise in my view. The objects of the EP&A Act are.
(a) to encourage:
(i) the proper management, development and conservation of natural and artificial resources, including agricultural land, natural areas, forests, minerals, water, cities, towns and villages for the purpose of promoting the social and economic welfare of the community and a better environment,
(ii) the promotion and co-ordination of the orderly and economic use and development of land,
(iii) the protection, provision and co-ordination of communication and utility services,
(iv) the provision of land for public purposes,
(v) the provision and co-ordination of community services and facilities, and
(vi) the protection of the environment, including the protection and conservation of native animals and plants, including threatened species, populations and ecological communities, and their habitats, and
(vii) ecologically sustainable development, and
(viii) the provision and maintenance of affordable housing, and