James Gregory Wigmore

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James Gregory Wigmore
Born (1953-06-03) June 3, 1953 (age 73)
Toronto, Ontario, Canada
NationalityCanadian
EducationB.Sc. in Biology, University of Toronto
Alma materUniversity of Toronto
Known forResearch in alcohol, cannabis, nicotine, and carbon monoxide toxicology
Scientific career
FieldsForensic toxicology
InstitutionsOntario Centre of Forensic Sciences

James Gregory Wigmore (born 3 June 1953) is a Canadian forensic toxicologist, author, and educator. He worked at the Ontario Centre of Forensic Sciences for nearly three decades and has published research on alcohol, cannabis, nicotine, and carbon monoxide toxicology.[1][2]

Wigmore is listed by the Government of Canada among national cannabis experts.[3] His ResearchGate profile lists 167 publications, including peer-reviewed articles, book chapters, and conference presentations.[4]

Early life and education

Wigmore was born in Toronto, Ontario, the third of nine children. He earned a B.Sc. in biology from the University of Toronto in 1980 while working at the Ontario Centre of Forensic Sciences.

Career

Wigmore began working at the Ontario Centre of Forensic Sciences in 1976, initially maintaining Borkenstein Breathalyzers used in Ontario. He later trained as a forensic toxicologist and was designated as an analyst under section 254(1) of the Criminal Code (Canada).

He served on the Alcohol Test Committee of the Canadian Society of Forensic Science, which advises the federal Minister of Justice on forensic alcohol testing.[1]

Wigmore received the H. Ward Smith Award and the Wilfrid Derome Award from the Canadian Society of Forensic Science.[1]

After retiring in 2005, he worked as a consultant and expert, including participation in a Health Canada expert panel during the legalization of cannabis in 2018.[3]

Expert witness

Wigmore has provided testimony in over 700 criminal cases, coroners’ inquests, regulatory hearings, and personal injury trials.[3]

He testified in the trial of former Toronto Maple Leafs captain Rob Ramage regarding alcohol toxicology.[2]

He provided toxicology evidence in the coroner’s inquest into the death of Chantel Moore, who was shot by police in New Brunswick in 2020.[5][6][7][8][9]

He has also offered pro bono review of toxicology in cases such as the death of a hiker on the Appalachian Trail.[10]

Publications

Wigmore has authored over 70 scientific articles and more than 60 conference presentations. His research has been cited by the Supreme Court of Canada in a ruling on the reliability of breath alcohol testing.[11]

Books

  • Wigmore on Alcohol: Courtroom Alcohol Toxicology for the Medicolegal Professional (1st and 2nd editions, ISBN 9781552216842)
  • Wigmore on Cannabis: The Forensic Toxicology of Marijuana for Lawyers and Other Medicolegal Professionals (ISBN 9781552214848)
  • Wigmore on Carbon Monoxide: Forensic Toxicology and Medicolegal Aspects (ISBN 9781487570606)
  • Wigmore on Nicotine and Its Drug Delivery Systems: The Medicolegal Aspects of Our Most Addictive and Dangerous Legal Drug (ISBN 1552216470)

Selected articles

  • Wigmore, J.G. (2025). "Nicotine: The Neglected Forensic Drug". Forensic Science Review. 37: 30–33.
  • Wigmore, J.G. (2023). "Commentary: Cannabis is More Like Alcohol Than a Schedule I Drug". Forensic Science Review. 35: 74–78.
  • Wigmore, J.G.; Langille, R.M. (2009). "Six Generations of Breath Alcohol Testing Instruments: Changes in the Detection of Breath Alcohol". Canadian Society of Forensic Science Journal. 42: 276–283. doi:10.1080/00085030.2009.10757614.
  • Wigmore, J.G. (2009). "Man vs Machine: Self Reported Alcohol Consumption of Drinking Drivers vs. Evidential Breath Alcohol Tests". The Criminal Law Quarterly. 54: 395–410.
  • Jones, A.W.; Wigmore, J.G.; House, C.J. (2006). "The Course of the Blood-Alcohol Curve After Consumption of Large Amounts of Alcohol Under Realistic Conditions". Canadian Society of Forensic Science Journal. 39 (3): 122–140. doi:10.1080/00085030.2006.10757142.

Media coverage

Wigmore’s work has been cited in Canadian and U.S. media, including:

  • The Globe and Mail – coverage of alcohol and sexual assault cases.[2]
  • CBC News – forensic toxicology in impaired driving cases.[12]
  • CBC News – survey on impaired driving.[13]
  • The Patriot Ledger – commentary in U.S. criminal cases.[14][15]
  • BlogTO – public lectures on cannabis and toxicology.[16]
  • Sharon A. Crawford blog – coverage of Wigmore on Cannabis.[17]
  • Responsible Cannabis Use – discussion of cannabis education.[18]
  • Letters to the editor in The Globe and Mail and Toronto Star regarding alcohol and cannabis policy.[19][20]

References

  1. ↑ 1.0 1.1 1.2 "CSFS Awards and Recipients". Canadian Society of Forensic Science. Retrieved 10 September 2025.
  2. ↑ 2.0 2.1 2.2 "Unfounded: Too drunk to consent – how alcohol complicates sex assault cases". The Globe and Mail. 28 February 2017. Retrieved 10 September 2025.
  3. ↑ 3.0 3.1 3.2 "Cannabis experts – Government of Canada". Government of Canada. 6 March 2018. Retrieved 15 September 2025.
  4. ↑ "James Wigmore – ResearchGate profile". Retrieved 15 September 2025.
  5. ↑ "Chantel Moore shot by N.B. police officer in chest, abdomen, leg, inquest hears". Nanaimo News Now. 18 May 2022. Retrieved 10 September 2025.
  6. ↑ "Chantel Moore shot by N.B. police officer in chest, abdomen, leg, inquest hears". Toronto Sun. 18 May 2022. Retrieved 15 September 2025.
  7. ↑ "Chantel Moore shot by N.B. police officer in chest, abdomen, leg, inquest hears". National Post. 18 May 2022. Retrieved 15 September 2025.
  8. ↑ "Chantel Moore was shot by N.B. police officer in her chest, abdomen and leg, inquest hears". The Globe and Mail. 18 May 2022. Retrieved 15 September 2025.
  9. ↑ "Former RCMP officer creates video re-enactment of the night Chantel Moore was shot". APTN News. 20 May 2022. Retrieved 15 September 2025.
  10. ↑ "Medical examiner said alcoholism contributed to hiker's death; experts don't buy it". WGME. 7 December 2018. Retrieved 10 September 2025.
  11. ↑ "R v St-Onge Lamoureux, 2012 SCC 39". Supreme Court of Canada. 2012. Retrieved 10 September 2025.
  12. ↑ "Blood alcohol concentration levels and police toxicology". CBC News. 16 September 2016. Retrieved 10 September 2025.
  13. ↑ "More Canadians admit to drinking and driving: study". CBC News. 6 April 2007. Retrieved 15 September 2025.
  14. ↑ "Plymouth woman wants truth known". The Patriot Ledger. 23 November 2019. Retrieved 10 September 2025.
  15. ↑ "Plymouth woman declares victory in toxicology case". The Patriot Ledger. 28 November 2019. Retrieved 10 September 2025.
  16. ↑ "CBD oil, edibles, and vaping discussion – Toronto Public Library event". BlogTO. Retrieved 10 September 2025.
  17. ↑ "Wigmore on Cannabis". Sharon A. Crawford. Retrieved 15 September 2025.
  18. ↑ "How cannabis education like CANNED can benefit your organization". Responsible Cannabis Use. 31 October 2019. Retrieved 15 September 2025.
  19. ↑ "It's legal now – letters to the editor". The Globe and Mail. 17 October 2018. Retrieved 10 September 2025.
  20. ↑ "In Ontario we hide cigarettes, but beer is in plain view". Toronto Star. 6 September 2025. Retrieved 10 September 2025.

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