Continuity of Alcohol Standard Solution: Keep from Freezing
Many years ago I asked for timely disclosure/production of a representative bottle of the alcohol standard lot used during the breath...
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Stephen Biss
- Oct 19, 2022
- 7 min
Error in Facts - "Impaired Driving and Other Criminal Code Driving Offences", Jokinen and Keen
Does partial automation of error-checking in an approved instrument: specifically diagnostics tests, air blanks, cal. checks, and maximum...
20 views0 comments
Stephen Biss
- Oct 15, 2022
- 4 min
Continuity: From the Box
Tip 37: Defence lawyers need to study the video - does the qualified technician take a random (unrelated to the matter before the Court)...
9 views0 comments
Stephen Biss
- Oct 3, 2022
- 2 min
Continuity: Use of a Seal
Tip 38: One of the best ways to control wet-bath simulator alcohol standard continuity is to use alphanumeric police seals and record...
9 views0 comments
Stephen Biss
- Sep 30, 2022
- 1 min
Continuity: Whiteboard or blackboard method
Tip 36: Some police detachments have been known to write the manufacturer name, lot number, name/badge of solution change officer,...
14 views0 comments
Stephen Biss
- Sep 9, 2022
- 1 min
Anecdotal Notes in Alcohol Standard Log
Tip 29: Obtain disclosure, of the full #duisimulator alcohol standard log, to search for anecdotal notes of difficulties experienced by...
12 views0 comments
Stephen Biss
- Jun 10, 2022
- 3 min
Is it safe to assume that the target value of the alcohol standard was 100?
The video below displays a variety of alcohol standards that could be used in a #duisimulator for evidentiary breath testing for...
16 views0 comments
Stephen Biss
- May 20, 2022
- 8 min
Cross-examination of solution change QT using COBRA
There are three conditions precedent to the Crown's use of the "conclusive proof" presumption in secton 320.31(1) of the Criminal Code of...
16 views0 comments
Stephen Biss
- May 15, 2022
- 5 min
Cross-examination of Solution Change QT on Standard Operating Procedures (SOPs)
The cross-examination example below, is of a very, very, experienced and respected qualified technician. Notwithstanding his training and...
33 views0 comments
Stephen Biss
- May 13, 2022
- 32 min
Preparation for Cross-examination Using COBRA
Two reasons why the data, close in time to the subject test date, included in Intoxilyzer COBRA downloads, is useful to the defence in...
19 views0 comments
Stephen Biss
- Apr 30, 2022
- 3 min
Know the Simulator Probes
Tip 24: Knowledge of #duisimulator probes assists understanding of function & malfunction of thermistor, heater, and thermometer(s). Many...
6 views0 comments
Stephen Biss
- Dec 3, 2021
- 2 min
Verification of Digital Thermometer
Although not stated in the 8000C Training Aid, CFS scientists seem to be in agreement, that it is recommended that a NIST mercury...
14 views0 comments
Stephen Biss
- Feb 14, 2018
- 4 min
Traceability of Measurement Result on an Approved Instrument
Purpose: To obtain an admission from the CFS scientist that the traceability of a measurement result on an approved instrument or a truck...
16 views0 comments
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