Purpose of disclosure or production of maintenance records and data
What is the purpose in Stinchcombe/McNeil disclosure or O'Connor production of maintenance records and historical data? Government...
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Stephen Biss
May 16, 20188 min read
Annual Inspections Done Without Reference to Manufacturer's Specifications
This is a sample cross-examination of an Ontario CFS scientist on the procedure used to perform an initial factory calibration (or a...
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Stephen Biss
Apr 20, 20184 min read
Relevance of Contemporaneous Documentation by Inspector Taking Instrument Out of Service
Let's suppose that as a result of a disclosure request or Freedom of Information application you find an electronic or paper document...
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Stephen Biss
Apr 5, 20182 min read
ABA Sequences v ACA Sequences
Purpose: To explain to the Court, the differences between ABA (Esc Esc B) and ACA (Esc Esc C) sequences To confirm that ABA sequences are...
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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
Mar 29, 20186 min read
Police Fail to Correct a Linearity Problem on In-House Annual Inspection
Let's suppose that you obtain disclosure or Freedom of Information documents respecting In-house Periodic Inspections by your local...
19 views0 comments
Stephen Biss
Mar 28, 20185 min read
Police No Longer Follow ATC Best Practices Respecting Tolerance
Purpose of this sample cross-examination: To demonstrate that when the particular instrument was first placed into service, the tolerance...
7 views0 comments
Stephen Biss
Mar 25, 20182 min read
Establishment of Calibration Intervals
The concept of "calibration interval" is an important one in measurement science. Unfortunately most criminal law lawyers and Judges are...
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Stephen Biss
Mar 24, 20185 min read
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
Feb 25, 20186 min read
AI Hardware and Software Can't Measure Without Learning and Re-Learning
Purpose: To educate the Court as to the "why" of the unreliability of an approved instrument to measure across the measuring interval if...
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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
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...
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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,...
5 views0 comments
Stephen Biss
Jan 24, 20184 min read
Checking Analytical Variability and Accuracy of the Instrument? Where?
Purpose: To explore the lack of a lab setting when accuracy and precision of the instrument are checked on periodic or annual inspection....
21 views0 comments
Stephen Biss
Jan 15, 20186 min read
No Supervision by ATC, CFS, or Anyone of Annual/Periodic Inspection SOPs
Purpose: To show that the ATC recommendations for operational procedures at time of use do not account for the need during inspections to...
17 views0 comments
Stephen Biss
Jan 10, 201810 min read
Beer-Lambert Law as Stated in Training Aid is Over-Simplified and Inadequate
This blog entry contains excerpts from the cross-examination of a CFS scientist during an over 80 trial. It was suggested to the...
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