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Court of Criminal Appeal 20 December 2013

Hugo JACOBS v R

[2013] NSWCCA 332

Drugs
CRIMINAL LAW APPEAL AGAINST CONVICTION EXPERT EVIDENCE

Citation: Jacobs v R [2013] NSWCCA 332
Court: NSW Court of Criminal Appeal
Date: 20 December 2013
Judge(s): Hidden J (with Latham J and Adamson J agreeing)

Background

The appellant was convicted in the District Court of supplying a commercial quantity of methylamphetamine (413.1 grams) as part of an alleged joint criminal enterprise. The Crown's case was that he and another man travelled to a motel at Casula in June 2008, where the drug was supplied to two interstate buyers. The buyers were later stopped by police near Goulburn, and the methylamphetamine was found in their vehicle.

The Crown's case against the appellant was circumstantial. Police had recorded intercepted phone calls and video surveillance footage, but no direct identification evidence from investigating officers placed the appellant at the scene. The critical identification evidence came from the appellant's estranged wife, who told the jury she recognised both the driver of the vehicle in surveillance footage and the voice in the intercepted calls as belonging to the appellant.

The estranged wife had met the appellant after the offence occurred, married him in 2009, and separated from him in October 2010. She came forward with her identification evidence shortly before the trial, in late November 2010. The reliability and honesty of that evidence formed the central issue on appeal.

  • Whether fresh evidence obtained after trial, in the form of typewritten letters apparently authored by the key identification witness and containing admissions that she had lied at trial, demonstrated a miscarriage of justice warranting a new trial
  • Whether the identification evidence of the estranged wife was admissible, including whether it had been improperly influenced before it was given
  • Whether a detective gave impermissible opinion evidence by expressing conclusions about the meaning of coded language in the intercepted phone calls, going beyond his area of specialised knowledge
  • Whether the Crown's argument that the proviso should be applied (that is, that no substantial miscarriage of justice occurred despite any errors) should be accepted

Decision

The court dealt first with the fresh evidence ground. During the appeal hearing, the estranged wife gave oral evidence and acknowledged that she had in fact authored two unsigned, typewritten letters that had been sent to the appellant in prison. Both letters contained statements to the effect that she had lied about his voice in her trial evidence and had deliberately set him up. Her earlier affidavit had denied authorship, but she changed her position at the hearing, attributing the inconsistency to locating the documents on a USB stick from an old computer.

Despite acknowledging authorship, the witness maintained her trial evidence was truthful. She offered explanations for the damaging content of the letters. The Court of Criminal Appeal found, however, that the letters and her shifting account of them raised serious questions about her credibility that the trial jury had never had the opportunity to consider. This, the court concluded, constituted a miscarriage of justice sufficient to warrant a new trial.

On the expert evidence grounds, the court accepted that a detective had exceeded the proper bounds of expert evidence by reasoning through factual inferences from his specialised knowledge rather than simply supplying that knowledge to assist the jury. The court noted that the longstanding concern about experts straying into factual matters is that it risks displacing the jury's own reasoning function. While the court did not need to decide whether this ground alone would have been sufficient to quash the conviction, it indicated the evidence should not be permitted at any retrial.

The court rejected the Crown's submission that the proviso should be applied. Given the central importance of the estranged wife's identification evidence to the prosecution case, and the court's assessment of the fresh evidence, it was not satisfied that no substantial miscarriage of justice had occurred.

Orders Made

  • Appeal allowed
  • Conviction set aside
  • New trial ordered

Key Takeaways

  • Fresh evidence that emerges after trial and bears directly on the credibility of the prosecution's key witness can constitute a miscarriage of justice, even where that witness maintains her original account was truthful.
  • A witness who denies authorship of potentially exculpatory documents in an affidavit, then concedes authorship during the appeal hearing, presents a credibility question of a kind that the original jury never had the opportunity to assess.
  • Expert witnesses are confined to their area of specialised knowledge; where a witness reasons through factual inferences that are properly the jury's task, the evidence risks improperly displacing the jury's role as finder of fact.
  • In refusing to apply the proviso, the court emphasised that the central role of the identification witness in the Crown case meant the fresh evidence could not be treated as harmless.
  • Where a conviction rests on circumstantial evidence and the reliability of a single key witness is fundamentally undermined by post-trial developments, the Court of Criminal Appeal will not preserve the verdict by invoking the proviso.

Legislation and Cases Referenced

Legislation
- Evidence Act 1995 (NSW)

Cases
- Grey v The Queen [2001] HCA 65; 75 ALJR 1708
- R v Abou-Chabake [2004] NSWCCA 356; 149 A Crim R 417
- Keller v R [2006] NSWCCA 204
- R v David and Gugea (CCA, Unreported, 10 October 1995)