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Reliability: Flooded Sample Chamber 2
Unfortunately it is very easy for a qualified technician to reverse the inlet and outlet couplings Intoxilyzer to wet-bath simulator.
Stephen Biss
Jan 13, 20234 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...
Stephen Biss
Dec 8, 20226 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...
Stephen Biss
Oct 12, 20224 min read


Response Drifts Over Time
In an article relied upon by the SCC in St. Onge, Brian Hodgson stated: Defence lawyers need to educate themselves about the meanings of...
Stephen Biss
Mar 23, 20183 min read


Causation of Error v. Calculation of Drift in Precision - Evidence Based Assessment of Reliability
What is the purpose in Stinchcombe/McNeil disclosure or O'Connor production of maintenance records and historical data? Crown CFS...
Stephen Biss
Feb 10, 20187 min read


Durability Over Time
Purpose: To obtain admissions respecting the inadequacy of ATC / CFS recommendations in requiring "stability of metrological...
Stephen Biss
Jan 18, 201810 min read


Error Rates and Drift in Precision
Purpose: To establish that the ATC/CFS is not sampling from aging instruments out in the field to determine error rates To establish that...
Stephen Biss
Jan 14, 20187 min read
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