2012 ATC Position Paper Built Upon Hypothesis Without Empirical Evidence
Purpose: To obtain admissions that the opinion of the Crown expert (and indirectly the 2012 ATC Position Paper) that single point control...
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Stephen Biss
Apr 4, 20185 min read
3 Consecutive Annual Inspections Reveal a Trend Towards Unreliability
Let's suppose that you obtain, as the result of disclosure or a Freedom of Information application of paper or electronic documents,...
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Stephen Biss
Feb 10, 20187 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...
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Stephen Biss
Jan 31, 20185 min read
Police Services Use Control Test Data Outside MPE to Calculate Precision
Purpose: To obtain an acknowledgement from a CFS scientist that even though he would exclude data outside (the Maximum Permissible Error...
15 views0 comments
Stephen Biss
Jan 30, 20185 min read
Ignoring Inconvenient Data in Calculation of Precision
Purposes of this cross-examination: To challenge the opinion that data outside maximum permissible error (outside +/- 10 mg%) should be...
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Stephen Biss
Jan 29, 20186 min read
Defence Methodology Calculating Precision in the Field
Purpose: To establish a better methodology for calculating precision of an approved instrument in service. To apply CFS methodology using...
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Stephen Biss
Jan 28, 20185 min read
Precision Testing Using Only 2 Data Points is Inadequate to Calculate Precision
Purpose: To elicit evidence to the Court as to the inadequacy of calculation of the instrument's precision by the local police service,...
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Stephen Biss
Jan 22, 20186 min read
Distorted Concept of "Accuracy", "Precision", and "Reliability"
Purpose: To remind the Court of the concept of "reliability" used by the SCC in St-Onge. To educate the Court as to the definitions of...
6 views0 comments
Stephen Biss
Jan 21, 20181 min read
Attempt to Distinguish from Jackson and Vallentgoed
Purpose: To support argument that the Maintenance History shows that the instrument was taken "out of service", for "consistently low...
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Stephen Biss
Jan 18, 201810 min read
Durability Over Time
Purpose: To obtain admissions respecting the inadequacy of ATC / CFS recommendations in requiring "stability of metrological...
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Stephen Biss
Jan 15, 20186 min read
Manipulating Control Test Data to Enhance Precision
Purpose: To neutralize the government scientist's assertion that anomalous data should be excluded from calculation of precision. To...
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Stephen Biss
Jan 14, 20187 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...
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