Reliability: Flooded Sample Chamber 1
It is very easy for a qualified technician to accidentally flood the sample chamber on an Intoxilyzer 5000 (or 5000C) or an 8000 (or...
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Stephen Biss
Dec 28, 20222 min read
Reliability: Aging - Losing Memory
The Intoxilyzer® 8000 depicted in this video was once a reliable evidentiary breath testing instrument in the United States. It is...
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Stephen Biss
Dec 21, 20226 min read
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
Dec 14, 20221 min read
What is SCC: R. v. St-Onge Lamoureux "Reliability" in an Approved Intrument?
Please carefully re-read what the Supreme Court of Canada said about "reliability" in R. v. St-Onge Lamoureux. Please think about and...
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Stephen Biss
Dec 8, 20226 min read
What is Differential Voltage Monitoring (DVM) ?
Many years ago Ontario defence lawyers cross-examined breath techs on "how much room there was" on the particular Intoxilyzer 5000C to...
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Stephen Biss
Nov 23, 20224 min read
Ancient Egypt and DUI Metrology
If you served wine or beer at a pub in ancient Egypt the beverages were measured out using liquid volume instruments like these. Each...
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Stephen Biss
Nov 17, 20223 min read
Study the Block Diagram in the Wet-Bath Simulator Manufacturer's Manual
Tip 25: Obtain a copy of the Guth Laboratories, Inc. wet-bath "Model 2100 Simulator Operation Manual" and study the "Model 2100-Block...
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Stephen Biss
Nov 10, 20222 min read
Calibration Check on Periodic Inspection of Wet-bath Simulator
Tip 27: Does the Inspector use a traceable reference thermometer, that is accurate and precise, to at least two decimal places, to...
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Stephen Biss
Nov 3, 20223 min read
Continuity of Alcohol Standard: CalGuard Feature
Tip 40: Some police services take the position that they don't need to use seals between the simulator housing and the jar. Failure to...
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Stephen Biss
Oct 26, 20222 min read
Continuity: Write on Empty Bottle
Tip 35: The simplest method of communicating the last change date of the alcohol standard solution placed into the wet-bath simulator is...
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Stephen Biss
Oct 19, 20227 min read
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...
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Stephen Biss
Oct 15, 20224 min read
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)...
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Stephen Biss
Oct 12, 20224 min read
Change of Response at One Point but Not at Another Point that is Equivalent
Purpose: To suggest that there is empirical evidence in the matter before the Court of change in response by the approved instrument at...
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Stephen Biss
Sep 30, 20221 min read
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,...
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Stephen Biss
Sep 26, 20222 min read
What is Purge Fail on an Intoxilyzer ?
What is a Purge Fail on an Intoxilyzer 8000C ? What is a Purge File on an Intoxilyzer 5000C ? How does this phenomenon affect reliability...
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Stephen Biss
Sep 16, 20222 min read
Appendix E: Location & Anecdotal Notes in Log
Tip 30: The CFS 8000C Training Aid of 2013 at page 191 of 238, Appendix "E" recommends that the Alcohol Standard Log, updated by the...
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Stephen Biss
Sep 13, 20221 min read
What is an Ambient Fail on an Intoxilyzer 8000C?
What does "ambient fail" or "ambient failed" mean on an Intoxilyzer 8000C? Watch the following video and ask yourself why the ambient...
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Stephen Biss
Sep 12, 20222 min read
What is an air blank on an Intoxilyzer 8000C?
What does an air blank look like on an Intoxilyzer 8000 or 8000C? What is a blank test? What is a system blank test? What does 000 mean...
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Stephen Biss
Sep 9, 20221 min read
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...
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Stephen Biss
Sep 7, 20223 min read
Ambient Fail Threshold 5, 10, 19, 20 ?
We know that the ambient fail threshold (the mg% point at which the exception error is flagged) on both the Intoxilyzer 5000/5000C and...
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