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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...
Stephen Biss
Aug 20, 20189 min read
40 views
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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,...
Stephen Biss
Apr 4, 20185 min read
9 views
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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
7 views
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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...
Stephen Biss
Jan 31, 20185 min read
16 views
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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...
Stephen Biss
Jan 30, 20185 min read
7 views
0 comments


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...
Stephen Biss
Jan 29, 20186 min read
3 views
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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,...
Stephen Biss
Jan 28, 20185 min read
5 views
0 comments


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...
Stephen Biss
Jan 22, 20186 min read
6 views
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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...
Stephen Biss
Jan 21, 20181 min read
8 views
0 comments


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
5 views
0 comments


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...
Stephen Biss
Jan 15, 20186 min read
8 views
0 comments


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
7 views
0 comments
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