Internal Standards Also Need Calibration and Calibration Interval
Purpose: To explain the function of internal standards, the ITP, internal test procedure to the Court. To obtain an admission that the...
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Stephen Biss
Mar 23, 20183 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...
11 views0 comments
Stephen Biss
Mar 2, 20186 min read
Traceability of Measurement Results is Through the Certificate of Calibration
"Traceability" is an important concept in metrology - measurement science. Defence lawyers need to study metrology, find experts, and...
15 views0 comments
Stephen Biss
Mar 1, 20186 min read
8000C Auto-Calibration Sequence - How to Run the Auto-Calibration Sequence
Purpose of this cross-examination: To educate the Court about the calibration sequence run on the approved instrument at the factory. To...
19 views0 comments
Stephen Biss
Feb 16, 20184 min read
Measurements Under the Criminal Code of Canada Use SI Units
Purpose: To connect the Criminal Code and its wording about concentration of alcohol in units of blood with the International system of...
5 views0 comments
Stephen Biss
Feb 15, 20186 min read
What is measurement?
Purpose: Cross-examination of a CFS scientist on the VIM. To connect "measurement" in Canadian evidentiary breath testing to...
6 views0 comments
Stephen Biss
Feb 13, 20183 min read
Factors Influencing Reliability
What is "reliability" in the context of a "quantitative analysis"? What does "reliability" mean in measurement science? We have a...
37 views0 comments
Stephen Biss
Feb 12, 20185 min read
Stop, Document, and Report
Purpose: To educate the Court about good laboratory practice. To obtain an admission from the CFS scientist, that good laboratory...
6 views0 comments
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...
7 views0 comments
Stephen Biss
Feb 9, 20187 min read
Heater Response Time on Guth 2100
Purpose: To further challenge the Crown's suggestion that the anomalous low cal. checks that occurred in this breath truck were not...
6 views0 comments
Stephen Biss
Feb 8, 20182 min read
Cross-examination about Henry's Law
Purpose: To use the cross-examination of the CFS scientist to educate the Court about Henry's Law Q. All right. In a nutshell, what’s...
3 views0 comments
Stephen Biss
Feb 6, 20184 min read
Wet-bath Simulators Manufacturer Specs
Purpose: To obtain an admission from a CFS scientist that expectation of ATC Best Practices Recommendation is for annual inspection of...
6 views0 comments
Stephen Biss
Feb 5, 20183 min read
Uncertainty of Measurement is Not Novel Science
Purpose: To obtain an admission from a CFS scientist that uncertainty of measurement is not novel science. A. ...So, it’s a static...
12 views0 comments
Stephen Biss
Feb 4, 20185 min read
Uncertainty of Measurement for Lawyers and Judges
Lawyers and Judges need to get past their deep-seated fear of uncertainty. If we are to promote the use of good science, in Court, we, as...
20 views0 comments
Stephen Biss
Feb 2, 20186 min read
Independent Annual Inspections v In-house Inspection by Local Police
Purpose: To obtain admissions as to the differences in inspections, in inspection standard operating procedures, and completeness of an...
6 views0 comments
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...
4 views0 comments
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...
3 views0 comments
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,...
5 views0 comments
Stephen Biss
Jan 27, 20189 min read
Government Scientists Calculate Uncertainty of Measurement - Why Can't We?
Purpose: To obtain admissions about the use of historical control test data by the Centre of Forensic Sciences in Toronto to calculate...
12 views0 comments
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