Stephen BissSep 26, 20187 minToxicology Letter of Opinion Without AccreditationFor purposes of this sample cross-examination it is assumed that the cross-examiner has already laid the groundwork of the findings and...
Stephen BissAug 20, 20189 min2012 ATC Position Paper Built Upon Hypothesis Without Empirical EvidencePurpose: To obtain admissions that the opinion of the Crown expert (and indirectly the 2012 ATC Position Paper) that single point control...
Stephen BissAug 14, 20189 minOIML R126 is the International Standard for Evidential Breath AnalyzersPurpose: To obtain admissions that: there exists an international legal measurement standard for evidential breath analyzers the...
Stephen BissMay 30, 20183 minThe 2012 ATC Position Paper is Not a Scientific ArticlePurpose: To obtain admissions that the 2012 Alcohol Test Committee Position Paper: - is a position paper -is not a scientific article -is...
Stephen BissMay 22, 20185 minMaybe the Instrument Is No Longer Linear Enough to Be An "8000C"Purpose: To explore the analytical variability of the 8000C as determined by the Alcohol Test Committee during evaluation of the 8000C...
Stephen BissMay 16, 20188 minAnnual Inspections Done Without Reference to Manufacturer's SpecificationsThis is a sample cross-examination of an Ontario CFS scientist on the procedure used to perform an initial factory calibration (or a...
Stephen BissApr 27, 20184 minBAC Analysis in a Lab Without Bracketing Controls is at Best Qualitative not QuantitativeWe have a serious problems in the Canadian criminal justice system. One of them is the failure of Parliament and the Courts to recognize...
Stephen BissApr 20, 20184 minRelevance of Contemporaneous Documentation by Inspector Taking Instrument Out of ServiceLet's suppose that as a result of a disclosure request or Freedom of Information application you find an electronic or paper document...
Stephen BissApr 13, 20185 minChange at One Point but Not at Another Point that is EquivalentThis is a sample excerpt from a cross-examination of a Crown expert using data from periodic inspection of an approved instrument. The...
Stephen BissApr 5, 20182 minABA Sequences v ACA SequencesPurpose: To explain to the Court, the differences between ABA (Esc Esc B) and ACA (Esc Esc C) sequences To confirm that ABA sequences are...
Stephen BissMar 29, 20186 minPolice Fail to Correct a Linearity Problem on In-House Annual InspectionLet's suppose that you obtain disclosure or Freedom of Information documents respecting In-house Periodic Inspections by your local...
Stephen BissMar 28, 20185 minPolice No Longer Follow ATC Best Practices Respecting TolerancePurpose of this sample cross-examination: To demonstrate that when the particular instrument was first placed into service, the tolerance...
Stephen BissMar 25, 20186 minWhy Does the ATC Say Single Point Control Tests are Good Enough?Purpose: To explore the differences between a measurement instrument that has a linear relationship between the thing measured and the...
Stephen BissMar 23, 20183 minResponse Drifts Over TimeIn an article relied upon by the SCC in St. Onge, Brian Hodgson stated: Defence lawyers need to educate themselves about the meanings of...
Stephen BissMar 2, 20186 minTraceability 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...
Stephen BissFeb 16, 20184 minMeasurements Under the Criminal Code of Canada Use SI UnitsPurpose: To connect the Criminal Code and its wording about concentration of alcohol in units of blood with the International system of...
Stephen BissFeb 13, 20183 minFactors Influencing ReliabilityWhat is "reliability" in the context of a "quantitative analysis"? What does "reliability" mean in measurement science? We have a...
Stephen BissFeb 5, 20183 minUncertainty of Measurement is Not Novel SciencePurpose: To obtain an admission from a CFS scientist that uncertainty of measurement is not novel science. A. ...So, it’s a static...
Stephen BissFeb 4, 20185 minUncertainty of Measurement for Lawyers and JudgesLawyers 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...
Stephen BissJan 27, 20189 minGovernment 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...