1 The first issue which arises for determination is whether the prosecution may be permitted to use evidence of prior events inside and outside the Salt Nightclub, as probative of whether the alleged acts of aiding and abetting at the murder scene were acts of assistance or encouragement and whether they were performed with the intent of assisting or encouraging a principal in the first degree.
History of the trial
2 Count one charges each of the accused with the murder of James Huynh. It is the prosecution case that all seven accused participated in a joint criminal enterprise. The complicity of the accused was initially stated by the prosecution as resting upon alternative bases. In opening its case to the jury the prosecution alleged that Cuong Lam, Hung Van and David Nguyen were acting in concert and were principals in the first degree whilst the accused Johnny Nguyen, Long Tran, Hong Bui and Hoang Tran were principals in the second degree. The jury was told that the principals in the first degree were acting in concert and that all or some of them had actually performed acts which caused or substantially contributed to the death of the deceased. Principals in the second degree were said to have aided and abetted the acts of the principals in the first degree by assisting or encouraging the principals in the first degree to commit the crime. Alternatively the prosecution said that all seven accused were acting pursuant to a "common purpose" that they would assault the deceased with the intent to cause death or really serious injury. Very shortly after the prosecution had commenced to call its evidence, and following extensive legal submissions in the absence of the jury, the prosecution announced that it would no longer rely upon common purpose as a basis for the complicity of the accused. The learned senior prosecutor informed the Court that this course was followed to simplify the issues for the jury and in fairness to the accused. The prosecution had always maintained that the primary basis upon which it put its case was that three of the accused acting in concert were principals in the first degree whilst the other four accused were principals in the second degree who were present aiding and abetting the three principals in the first degree.
3 The decision by the prosecution to abandon common purpose appears to have been rested upon decisions such as R v Mohan[1], R v Clough[2], R v Stokes & Difford[3], R v Phan[4]. In circumstances where the prosecution is able to establish that each of the accused was present at the time of the commission of the alleged offence the doctrine of common purpose may unduly complicate the trial process. Where the evidence leaves uncertain who was present and performed the acts constituting the commission of the offence it may not be appropriate to abandon common purpose.
4 The accused Long Tran, Hong Bui and Hoang Tran submit that the evidence led by the prosecution relating to events which occurred prior to the attack upon the deceased, James Huynh, at the intersection of Alexandra Avenue and Chapel Street, is irrelevant to the prosecution case made against each of them. Alternatively it is submitted that the prejudicial effect of such evidence would outweigh its probative value and the jury should be directed that they are not to take such evidence into account when considering the case against each accused.
5 The prosecution case alleges that Long Tran, Hong Bui and Hoang Tran were present at the scene of the murder of James Huynh at the intersection of Alexandra Avenue and Chapel Street at the time that one or more of the principals in the first degree, Cuong Lam, Hung Van or David Nguyen inflicted injuries upon the deceased which caused his death. In the case of Long Tran and Hong Bui the prosecution alleges that they drove their motor vehicles to the murder scene for the purpose of assisting or encouraging the principals in the first degree in the commission of the offence. The prosecution alleges that they alighted from their motor vehicles and stood in close proximity to the deceased whilst some of the injuries which caused the deceased's death were inflicted. The prosecution further alleges that the accused then returned to their motor vehicles and waited with the intention that they would assist the principals in the first degree by driving them away from the murder scene. The prosecution alleges, in relation to the accused Hoang Tran, that he chased the deceased north in Chapel Street and stood in close proximity to the deceased as he was attacked by one or more of the principals in the first degree at the intersection. The prosecution alleges that the accused Hoang Tran encouraged the principals in the first degree to commit the offence.
May the prosecution rely upon events which precede the acts of aiding and abetting?
6 Almost half of the trial concerned events which occurred inside the Salt Nightclub, outside the Salt Nightclub in Daly Street and the chase of the deceased from Daly Street north in Chapel Street to the intersection of Alexandra Avenue and Chapel Street where James Huynh came to his death. The prosecution submits that this evidence was relevant and admissible in the case of the principals in the second degree as bearing upon the intent of the principals in the second degree to assist or encourage the principals in the first degree and as demonstrating that those acts were acts of assistance or encouragement. The senior prosecutor submitted that it had always been the prosecution case, understood by all defence counsel, that in the event that the prosecution did not allege complicity by the principals in the second degree on the ground of common purpose, there would be no change to the factual basis upon which the prosecution sought to implicate those accused. That factual basis he maintained was always said to include the events inside and outside the Salt Nightclub and the chase of the deceased north in Chapel Street. On the day that the prosecution announced that it would not pursue common purpose, Mr Dean stated that the prosecution would continue to rely upon the circumstantial evidence of events prior to and subsequent to the acts which caused the death of the deceased as bearing upon the question of aiding and abetting. No objection was raised by counsel representing any of the principals in the second degree as to the relevance or admissibility of evidence concerning the events inside or outside the Salt Nightclub or in Chapel Street or the conduct of the principals in the second degree in those places.
Submissions
7 The prosecution submitted that where the question of intent of an accused arises in a criminal trial, the prosecution is entitled to rely upon relevant circumstances both before and after the performance of the actus reus to establish the intention of the accused at that time. Thus it was said that the involvement of principals in the second degree in the fight in the nightclub, their observations of the principals in the first degree and their observations and conduct outside the Salt Nightclub and in Chapel Street, culminating in their presence in the vicinity of James Huynh as he lay on the nature strip close to the intersection of Alexandra Avenue and Chapel Street, were facts and matters which could properly be taken into account by the jury in determining whether or not the acts of aiding and abetting of the principal in the second degree which the Crown relied upon were acts of encouragement or assistance and were intended to be so. It was submitted that the prosecution was permitted to place the acts of aiding and abetting in a contextual setting so that evidence of prior acts and surrounding circumstances could be relied upon to cast light on the nature and quality of the acts said to constitute aiding and abetting. The prosecutor relied upon R v Clarkson[5] in support of this submission.
8 Counsel for Long Tran acknowledged that in principle, knowledge by a principal in the second degree that the principal in the first degree would or might commit a crime at a future point of time would be relevant and admissible as bearing upon the intent of the principal in the second degree at the time the crime was committed. However he submitted that in the present circumstances such evidence could not be used in this manner because of the risk that the jury would misuse the evidence to find that there was an agreement between the principals in the first and second degree which would be used to demonstrate knowledge by the principal in the second degree of the intended crime. He submitted that having regard to the prosecution's announcement that it would not rely upon "common purpose" it would be improper and unfair for the evidence to be used in this way. It was contended that awareness by a principal in the second degree of an impending assault by a principal in the first degree was not relevant to the formation of the principal in the second degree's intent at the time when the principals performed the acts constituting the act of murder or alternatively that there was a risk that the evidence would unfairly prejudice the accused..
9 Reliance was placed upon the decision of the High Court in The Queen v Giorgianni[6] that liability of an aider and abettor depended upon proof of presence of the aider and abettor and knowledge of all of the essential facts that constitute the offence charged. Acts involving a principal in the second degree prior to this time would throw no light on the intent of the aider and abettor at the crime scene.
10 It was suggested on Long Tran's behalf that to avoid the risk of misuse of such evidence, the Crown should not be permitted to use the evidence of events inside or outside the nightclub or in Chapel Street as evidence bearing upon the acts of aiding and abetting or the intent which accompanied them. He submitted that the jury should be instructed that the intent of the aider and abettor had to be based upon the knowledge which the jury found the aider and abettor had at the time when the acts of aiding and abetting were performed.
11 Counsel for Hoang Tran also submitted that these events could throw no light on the subsequent intent of the principal in the second degree. The contention was reiterated that the relevant time to determine the intent of the aider and abettor was at the time that the acts of the principal in the first degree were being performed. It was submitted that the conduct of Hoang Tran prior to his arrival at the crime scene was not capable of being used in the way the prosecution contended. He adopted the submissions made on Long Tran's behalf that such evidence could not be relied upon to show any understanding between a principal in the first and second degree as a consequence of the way in which the prosecution had elected to present its case.
12 It was conceded on Hoang Tran's behalf that evidence of prior acts could be relevant to a principal in the second degree's motive for attending the crime scene. The acts of a principal in the second degree preceding the acts of aiding and abetting were, in this sense, capable of throwing light on why the principal in the second degree was present at the murder scene. Nevertheless counsel for Hoang Tran attempted to draw a distinction between the use of evidence of prior events for the legitimate purpose of explaining the accused's motives and how he came to be at the scene of the crime and what he said was the impermissible use of the evidence to throw light on the acts of aiding and abetting at the crime scene.
13 Counsel for Hong Bui also recognised that there would be circumstances in which acts preceding those which constituted the crime would be relevant to the formation of an intent by the accused at a subsequent time. He referred to O'Leary v The King[7] as a case in point. Although accepting that such evidence may be marginally relevant to the requisite intent to aid and abet he submitted that the prosecution should not be permitted to use such evidence because it was likely to be misused by the jury resulting in prejudice to the principals in the second degree.
14 It was submitted that if the prosecution were to allege that a principal in the second degree, prior to their attendance at the vicinity of the crime scene, had formed an intention to chase or assault the deceased, the prosecution would then be alleging common purpose. Upon that assumption, the submission continued, that the jury would be invited to draw inferences from the prior acts that there was an agreement and that this would have a two-fold prejudicial effect. It was submitted that the jury would be likely to give such evidence more weight than it deserved and it was likely to divert the jury from their task. Counsel relied upon the judgment of Justice McHugh in Festa v The Queen[8] in support of this submission.
15 Counsel for Hong Bui further argued that evidence of Hong Bui's conduct in chasing the deceased or driving his car to the crime scene would provide no proof that his client had the necessary intent at the time of the alleged assistance or encouragement provided to the principal in the first degree.
16 If the evidence was to show, at best from the prosecution's perspective, an intent by a principal in the second degree to assault the deceased, there was a real risk of the evidence being misused. It was contended that if there was a focus upon the intent of principals in the second degree prior to their conduct at the murder scene, the jury may erroneously treat an intention to assault as an intention to cause really serious injury or death.
17 It may be seen at once that each of the submissions advanced by counsel for Long Tran, Hong Bui and Hoang Tran involved an acknowledgement that such evidence had some probative value to the prosecution case but its probative value was so slight and its prejudice so great that the prosecution should not be permitted to rely upon such evidence.
Principles
18 In The Queen v Lowery & King (No. 2)[9] Smith J set out the principles relating to aiding and abetting which have been consistently applied in this State for over 30 years. His Honour said: