R. v. Rosbergen — B.C. court overturns murder conviction, citing flawed jury instructions

Case
R. v. Rosbergen
Court
Court of Appeal for British Columbia (Canada)
Date Decided
July 23, 2026
Citation
2026 BCCA 314
Topics
criminal law, evidence, jury instructions, Vetrovec warning

Background

Adrianus Rosbergen was convicted by a jury of the second-degree murder of Allen Skedden. Mr. Skedden’s body was found by the Fraser River in March 2017, with duct tape near his mouth and neck. The Crown’s case was circumstantial, alleging that Rosbergen, who owed the victim money from a tenancy dispute, had killed him. The last time the victim was seen, he was getting into Rosbergen’s truck on February 21, 2017.

The prosecution’s case relied on forensic evidence, including the victim’s DNA in Rosbergen’s truck and on items at a property Rosbergen rented, and the testimony of a witness, Richard Anderson. Anderson, who had an extensive criminal record, testified that Rosbergen confessed to him, stating he “tied him up with a rope and I threw him in the drink.” However, the forensic pathologist could not determine the cause of death, noting that while there were blunt force injuries, they were not sufficient to be fatal. Suffocation was a possible cause of death that could not be ruled out.

The Court’s Holding

The Court of Appeal for British Columbia allowed the appeal, set aside the murder conviction, and ordered a new trial. The court found that the trial judge’s final instructions to the jury contained errors that resulted in an unfair trial and substantial prejudice to the appellant, Mr. Rosbergen.

The primary error was that the trial judge materially misstated the forensic pathologist’s evidence regarding suffocation as a possible cause of death. This misstatement was critical, as the exact cause of death was a central issue. The court found this reversible error was compounded by a second error: an inadequate Vetrovec instruction concerning the witness, Richard Anderson. The judge’s warning to the jury failed to provide sufficient guidance on the special scrutiny required when assessing the credibility of Anderson, a witness with a history of dishonesty and a potential motive to lie, and the danger of accepting his unconfirmed testimony.

Key Takeaways

  • A trial judge’s summary of evidence to a jury must be accurate, especially concerning expert testimony on a determinative issue like the cause of death. Material misstatements can constitute a reversible error.
  • When the Crown relies on a Vetrovec witness (a witness with a disreputable character), the judge must provide a clear and sharp warning to the jury about the dangers of relying on their unconfirmed evidence.
  • The cumulative effect of multiple errors in a jury charge, even if some are not sufficient on their own to overturn a verdict, can lead to a finding that the trial was unfair.

Why It Matters

This decision reinforces the fundamental importance of accurate and complete jury instructions in ensuring a fair criminal trial. It highlights that even in the face of incriminating circumstantial evidence, procedural fairness and the integrity of the trial process are paramount. The ruling serves as a crucial reminder for the judiciary that errors in summarizing key evidence or in providing necessary cautions about unreliable witnesses can undermine a verdict, particularly in serious cases like murder where the stakes are highest. It affirms the principle that a conviction must be based on a solid foundation of law and fact, properly presented to the jury.

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