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 8, 20226 min
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...
8 views0 comments
Stephen Biss
Nov 30, 20228 min
Reliability: Ambient Conditions
Tip 41: Changing breath room ambient conditions can reduce "system calibration check" and "system blank test" reliability. Any...
17 views0 comments
Stephen Biss
Nov 23, 20224 min
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...
7 views0 comments
Stephen Biss
Nov 18, 20223 min
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...
14 views0 comments
Stephen Biss
Nov 10, 20222 min
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...
12 views0 comments
Stephen Biss
Nov 3, 20223 min
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...
6 views0 comments
Stephen Biss
Oct 26, 20222 min
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...
7 views0 comments
Stephen Biss
Oct 19, 20227 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...
25 views0 comments
Stephen Biss
Oct 15, 20224 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)...
13 views0 comments
Stephen Biss
Oct 12, 20224 min
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...
17 views0 comments
Stephen Biss
Oct 3, 20222 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...
12 views0 comments
Stephen Biss
Sep 30, 20221 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,...
19 views0 comments
Stephen Biss
Sep 26, 20222 min
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...
26 views0 comments
Stephen Biss
Sep 16, 20222 min
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 9, 20221 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
Sep 2, 20222 min
Reliability: Cal Checks in the Context of Earlier & Later Ambient Fails
Tip 47: A calibration check using a wet-bath simulator containing alcohol standard is not reliable if information is missing about air...
10 views0 comments
Stephen Biss
Sep 2, 20222 min
Ambient Conditions Change Baseline 0 on an IR Breath instrument - Disappearing Alcohol
Experiment studying the phenomenon of disappearing alcohol It is easy to replicate this experiment on an Intoxilyzer® 5000. It is more...
6 views0 comments
Stephen Biss
Aug 31, 20222 min
Reliability: Disabling Ambient Fail Exception, Making Alcohol Disappear
Tip 45: Study the breath room video and learn everything you can about the breath room and detachment. Watch for: Has the qualified...
12 views0 comments
Stephen Biss
Aug 18, 20222 min
Ambient Interferents Compromise Reliability of Control Tests
Tip 48: The reliability of control tests using the alcohol standard in a wet-bath #duisimulator may be compromised by the presence in the...
15 views0 comments
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