R. v. Chan

R. v. Chan

Staff Sergeant Patrick Murphy is qualified to give expert evidence on the specified aspects of cocaine importation and drug‑trade customs because those matters are generally outside the ordinary knowledge of the trier of fact, but his testimony is admissible only subject to continued judicial scrutiny to prevent usurpation of the jury's fact‑finding role and to exclude opinions on ultimate issues.

Citation
2014 BCSC 2562
Parties
Crown: Regina; Accused: Chun Siu Chan; Accused: Manraj Singh; Accused: Parminderjit Singh
Court
Supreme Court of British Columbia
Jurisdiction
Canada
Judgment Date
25 September 2014
Procedural Posture
Criminal / Voir Dire (expert Qualification)
Outcome
Crown application granted in part; Staff Sergeant Patrick Murphy qualified as an expert in the areas sought, subject to judicial scrutiny and limitation to avoid usurpation of the trier of fact
Legal Topics
Expert Qualification, Voir Dire, Importation of Cocaine, Police Expert Testimony, Admission of Expert Evidence
Source Language
English
Criminal Law Evidence Drugs Law Procedural Law Expert Qualification Voir Dire Importation of Cocaine Police Expert Testimony +1 more

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Parties

Regina

Crown

Chun Siu Chan

Accused

Manraj Singh

Accused

Parminderjit Singh

Accused

Procedural Posture

Criminal / Voir Dire (expert Qualification)

Legal Issues

  1. 1 Whether Staff Sergeant Patrick Murphy is qualified to give expert evidence on importation, packaging, distribution and related customs of cocaine
  2. 2 Whether the proposed expert evidence would usurp the role of the trier of fact or address ultimate issues
  3. 3 Whether the evidence is common knowledge requiring no expertise

Ratio Decidendi

Staff Sergeant Patrick Murphy is qualified to give expert evidence on the specified aspects of cocaine importation and drug‑trade customs because those matters are generally outside the ordinary knowledge of the trier of fact, but his testimony is admissible only subject to continued judicial scrutiny to prevent usurpation of the jury's fact‑finding role and to exclude opinions on ultimate issues.

Court Disposition

Crown application granted in part; Staff Sergeant Patrick Murphy qualified as an expert in the areas sought, subject to judicial scrutiny and limitation to avoid usurpation of the trier of fact

Orders

  • Staff Sergeant Patrick Murphy is qualified to give expert evidence concerning importation, quality, packaging, use and distribution of cocaine and common drug‑trade terminology and customs, subject to the court's ongoing scrutiny to exclude opinions on ultimate issues
  • Voir dire concluded