61 Section 23(1) of the Crimes (SP) Act permits a court to impose a lesser penalty than it would otherwise impose, having regard to the degree to which the offender has assisted, or undertaken to assist, law enforcement authorities in the prevention, detection or investigation of, or in proceedings relating to …any other offence. A lesser penalty imposed under s 23(1) must not be unreasonably disproportionate to the nature and circumstances of the offence for which the offender is to be sentenced: s 23(3) Crimes (SP) Act. Section 23(3) reflects the bottom line in relation to a discount for assistance to authorities beneath which a sentence cannot legitimately be set: SZ v Regina [2007] NSWCCA 19 per Howie J at [4].
62 The evidence of assistance is in the confidential affidavits and other evidence which is subject to orders which preserve the confidentiality of that material. The necessity for confidentiality requires that I do not provide in these sentencing remarks the details of the assistance. Nevertheless some summary must be given.
63 The assistance which has been provided by each brother concerns matters of a most serious nature which are unrelated to the present offence. Letters of assistance address those matters in s 23(2)(a-j) of the Crimes (SP) Act to which the Court is to have regard in deciding whether to impose a lesser penalty for an offence and the nature and extent of the penalty it imposes. The content of the letters of assistance is verified as being reliable by appropriate affidavits. Evidence was also given by Detective Sergeant Chambers and Senior Constable O'Donohue during the proceedings on sentence. Senior Constable O'Donohue's evidence on 12 August 2008 concerned ongoing assistance. I act upon the letters of assistance and the evidence of the police officers given before me in assessing the significance of the offenders' assistance. Moreover, in one of those matters each of the offenders has entered into a written undertaking to give active co-operation, including the giving of truthful and frank evidence. The value of the assistance provided in the other matters has not been similarly enhanced as each of the offenders has declined to enter into a written undertaking due to concern for their own safety and that of members of their family. I am satisfied that the information that has been given is considered by the authorities to be reliable and that the offenders have provided a high level of assistance to the police in the investigation of the matters which are referred to in the confidential material.
64 As to the timelines of the assistance, I take into account that police were contacted on the offenders' behalf in December 2007. It was then indicated that they were prepared to provide assistance. They have been in custody since 3 March 2006 for the present offence.
65 Following upon the offers to provide assistance, each offender has been detained in protection and because of this there has been added hardship associated with the circumstances of their detention. I have no doubt, on the evidence, that they will remain in protection during the whole of their sentences and the conditions of their detention will be more difficult than for other prisoners in the general prison population. As a result of the assistance provided and undertaken to be given, there is a real risk of injury to each of the offenders and to members of their family. They will all be at risk of injury for an indefinite period of time. It appears likely that upon release, they will be placed on witness protection.
66 The Crown submitted that the assistance was of a high order even before the undertaking to provide future assistance was given. A combined discount, the Crown contended, above 50 per cent would not be appropriate as the discount for the plea would not amount to 25 per cent. The component for future assistance would only be the Crown submitted a small proportion of the percentage of the overall assistance.
67 During submissions, Mr Ainsworth at one time suggested that 50 per cent was in effect the ceiling for a combined discount for a plea of guilty and assistance. With respect, the Court of Criminal Appeal has recognised that there will be cases in which a combined discount of more than 50 per cent is called for, although those cases will be comparatively rare: see R v Sukkar [2006] NSWCCA 92; SZ v Regina. Mr Ainsworth also made reference to consideration of an additional discount for the information supplied to police in accordance with the principles in R v Ellis (1986) 6 NSWLR 603 at 604. The information disclosed in the present case is of a different character to that in Ellis where voluntary disclosure was made by the offender of his involvement in armed robberies of which the police had no knowledge. An added discount, in my opinion, is not warranted in the present case in accordance with the principles in Ellis.
68 I assess for each offender a combined discount for the plea and assistance of 50 per cent of which 10 per cent is specified for the future assistance each has undertaken to give in accordance with the written undertaking. I do not regard the promise of future assistance as being insignificant. Each offender must realise that if he defaults in giving the assistance he has undertaken to give, he will face the prospect of a readily calculable increase in the sentence that is to be imposed today.
69 Victim impact statements of Amelia Nassour, the deceased's mother, Lilian Nassour and Paula Nassour, the deceased's sisters, and George Nassour were read to the Court. The contents of the statements cannot be used by me to increase the offenders' sentences: R v Previtera (1997) 97 A Crim R 76. I acknowledge the grief and distress of the deceased's family and express on the community's behalf its sympathy and compassion for them.
70 It is agreed that [KR] and [PR] have been in custody for the present offence since 3 March 2006. Accordingly, the date of commencement of their sentences will be 3 March 2006.
71 It is necessary to consider the principle of parity of sentence: Lowe v The Queen (1984) 154 CLR 606. The undiscounted starting point of Michael Ibrahim's sentence was 11 years. His different subjective case required a starting point which was higher than the starting points of the sentences to be imposed on the brothers.
72 The objective seriousness of the offence on the Form 1 is not such that there should be, in my opinion, a significant increase in the length of the sentence to be otherwise imposed on [PR] for the offence of manslaughter.
73 Whilst there are differences in the subjective cases of [KR] and [PR], I conclude on balance that the starting point for their sentences should be the same. The appropriate undiscounted starting point is 10 years 4 months. The sentences are reduced by 50 per cent to 5 years 2 months.
74 Counsel for [KR] and [PR] contended that special circumstances justifying a departure from the statutory ratio should be found due to the time the brothers spent in custody for offences which were not proceeded with. I referred to these matters at [34] and [53]. Counsel were unable to cite any authority where special circumstances have been considered to be present in similar circumstances. The general principle is that, save in exceptional circumstances, a period which a person has spent in custody in respect of an unrelated offence, should not be taken into account: Huntington v Regina [2007] NSWCCA 196. The present is not an exceptional case and I do not find special circumstances by reason of the time spent in custody for the offences which were not proceeded with.
75 Considerations of parity require that regard be had to the actual time that Michael Ibrahim must spend in custody for the offence: Postiglione v The Queen (1997) 189 CLR 295. After special circumstances were found, a non-parole period of 6 years 6 months was imposed.
76 It must, however, be borne in mind that special circumstances are not to be found for the same reasons that the sentence was reduced for assistance to police as to do so would amount to double counting: SZ v Regina at [11]. The ultimate constraint upon the discretion to find special circumstances is that the non-parole period must itself appropriately reflect the criminality involved in the offence: R v Simpson (2000) 53 NSWLR 704 per Spigelman CJ at [13].
77 I find special circumstances being that the offenders' rehabilitation upon release will be assisted by a longer period under supervision and a slight adjustment has been made to the statutory ratio to reflect that finding. Any greater adjustment would result in a non-parole period which does not appropriately reflect the gravity of the offence. Whilst it might be difficult for the brothers to be supervised by Probation and Parole if they go on witness protection upon release, it seems to me that they should not be deprived of a finding of special circumstances which otherwise would have been made but for their assistance to police.