top of page

THC / 8000C / 320.31 / Tutorials

​

April 12, 2019

Ottawa, ON

On April 12, 2019, 12  criminal defence lawyers met in Ottawa, Ontario to learn all they could about cannabis, THC, CBD, and metabolites. We learned about the theory of operation and the limitations of the Draeger DrugTest 5000, a device that has been designated as Approved Drug Screening Equipment. We discussed the potential for false positives. Our guest expert was Ben Joseph. The recording of his presentation is about 2 hours in length and is suitable for Ontario substantive CPD.
​
In the afternoon, participants were able to use an Intoxilyzer 8000 and a Guth 2100 wet-bath simulator hands-on. We  studied actual alcohol standard. Our focus was  on defences based on the conditions precedent to Criminal Code section 320.31 conclusive proof. The recording of the Intoxilyzer / 320.31 presentation is about 2 hours in length and is suitable for Ontario substantive CPD.
​
​
Participants also had access in the materials to 4 hours of "primer" video recordings of previously recorded classes. The recorded primer classes include:
​
Primer on Intoxilyzer Sequences, February 12, 2019
​
Primer on Drug Recognition Evaluation, February 19, 2019
​
Primer on Section 320 of the Criminal Code, February 25, 2019
​
Primer on Stipo, Sukhdeo, and Sutherland re DRE rolling logs and use of data, April 8, 2019
​
Recordings of these sessions are now available to defence lawyers
​
$350 plus HST for all of these April 12, 2019 and primer on-demand recordings and materials
​
Defence Lawyers, Articling Students, or Experts in Private Practice Only
Application  can be downloaded here in both Word and pdf formats:
​

Tutorial on THC Metabolites

by Ben Joseph, M.D.

Distinctions among the s. 320.28(5) Categories of Drugs

​

  • (a) a depressant;

  • (b) an inhalant;

  • (c) a dissociative anaesthetic;

  • (d) cannabis;

  • (e) a stimulant;

  • (f) a hallucinogen; or

  • (g) a narcotic analgesic.

​

THC and  metabolites of THC

​

Elimination rates

​

Immunoassay detection of THC and metabolites

​

Drager 5000 Drugtest, Approved Drug Screening Equipment

​

​

 

Hands-on Intoxilyzer Tutorial on Conditions Precedent to s. 320.31  BAC Presumption

by Stephen R. Biss, Barrister & Solicitor and Muhammed Adel Afzal, Barrister & Solicitor

FullSizeRender-17.jpg

​

Hands-on Intoxilyzer 8000 refresher

​

Strict legal construction of section 320.31 conditions precedent

​

"Approved Instrument"

​

Air Blank

  • Demonstration on Intoxilyzer 8000

  • Floating zero and purge fails in the Training Aid

  • Fudging the air blank to avoid a non-000 or an ambient fail alarm

 

System calibration test

  • Difference between calibration and control test

  • Which "system" is being checked?

  • Application to failure to blow cases

  • Traceability of the alcohol standard

  • Continuity of the alcohol standard

  • Demonstration of changing wet-bath standard using Guth simulators

​

The following is a 3 minute excerpt from the Intoxilyzer 8000 / 320.31 presentation:

bottom of page