Regina v Nguyen (No 2) [2009] NSWSC 1120

Regina v Nguyen (No 2) [2009] NSWSC 1120

The offender was convicted of two counts of manslaughter on the basis of substantial impairment by abnormality of mind, specifically severe depression precipitated by her husband's infidelity and decision to leave. Despite the impairment, the offender was aware of the wrongness of her acts and planned their commission. Her mental illness mitigated her culpability, warranting a significant reduction in sentence compared to murder, but did not absolve her of responsibility. The sentence balances diminished responsibility due to mental illness and the grave consequences for the victims, resulting in custodial terms reflecting both personal and general deterrence, retribution, and prospects...

Parties
Prosecution: Regina; Offender: Truong Thi Nguyen
Jurisdiction
Australia
Judgment Date
06 November 2009
Procedural Posture
Criminal / Sentencing After Conviction at Trial
Outcome
Offender sentenced to imprisonment for two counts of manslaughter, sentences partially cumulative.
Legal Topics
Manslaughter, Substantial Impairment, Mental Health, Sentencing, General and Specific Deterrence, Denunciation, Custodial Sentence
Criminal Law Manslaughter Substantial Impairment Mental Health Sentencing General and Specific Deterrence Denunciation Custodial Sentence

Case Brief

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Parties

Regina

Prosecution

Truong Thi Nguyen

Offender

Procedural Posture

Criminal / Sentencing After Conviction at Trial

Legal Issues

  1. 1 Whether the offender was suffering from mental illness under s 38 of the Mental Health (Forensic Provisions) Act 1990 or substantial impairment by abnormality of mind under s 23A of the Crimes Act 1900; proper sentence for manslaughter in circumstances of substantial impairment.

Ratio Decidendi

The offender was convicted of two counts of manslaughter on the basis of substantial impairment by abnormality of mind, specifically severe depression precipitated by her husband's infidelity and decision to leave. Despite the impairment, the offender was aware of the wrongness of her acts and planned their commission. Her mental illness mitigated her culpability, warranting a significant reduction in sentence compared to murder, but did not absolve her of responsibility. The sentence balances diminished responsibility due to mental illness and the grave consequences for the victims, resulting in custodial terms reflecting both personal and general deterrence, retribution, and prospects...

Court Disposition

Offender sentenced to imprisonment for two counts of manslaughter, sentences partially cumulative.

Orders

  • For the manslaughter of Joshua Bui: imprisonment with a non-parole period of 3 years commencing 19 February 2008 and expiring 18 February 2011 with a balance of term of 2 years expiring 18 February 2013.
  • For the manslaughter of Jade Bui: imprisonment with a non-parole period of 3 years commencing 19 February 2009 and expiring 18 February 2012 with a balance of term of 2 years expiring 18 February 2014.