Continuity: Outgoing = Incoming Seal Numbers
Tip 39: The key to usefulness of alphanumeric seals on a #duisimulator is whether or not the incoming seal number on the subsequent...
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Stephen Biss
- Jun 10, 2022
- 3 min
Is it safe to assume that the target value of the alcohol standard was 100?
The video below displays a variety of alcohol standards that could be used in a #duisimulator for evidentiary breath testing for...
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Stephen Biss
- May 28, 2022
- 4 min
Continuity of the Alcohol Standard
Tip 34: The use of an alcohol standard during evidentiary breath testing in Canada was not mentioned in the Criminal Code as a condition...
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Stephen Biss
- Apr 30, 2022
- 3 min
Know the Simulator Probes
Tip 24: Knowledge of #duisimulator probes assists understanding of function & malfunction of thermistor, heater, and thermometer(s). Many...
6 views0 comments
Stephen Biss
- Dec 3, 2021
- 2 min
Verification of Digital Thermometer
Although not stated in the 8000C Training Aid, CFS scientists seem to be in agreement, that it is recommended that a NIST mercury...
14 views0 comments
Stephen Biss
- Feb 14, 2020
- 3 min
Simulator is necessary "Accessory Equipment" that requires inspection and re-calibration
A wet-bath simulator is "accessory equipment" according to the ATC Best Practices document. A wet-bath simulator requires annual...
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Stephen Biss
- Apr 27, 2018
- 4 min
BAC Analysis in a Lab Without Bracketing Controls is at Best Qualitative not Quantitative
We have a serious problems in the Canadian criminal justice system. One of them is the failure of Parliament and the Courts to recognize...
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Stephen Biss
- Mar 25, 2018
- 6 min
Why 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...
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Stephen Biss
- Feb 9, 2018
- 7 min
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...
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Stephen Biss
- Feb 7, 2018
- 4 min
Use of Wet-bath Simulator in Winter Cold Temperatures
Purpose: To cross-examine a CFS scientist on use of Guth 2100 wet-bath simulator under Canadian cold operating conditions To build a case...
7 views0 comments
Stephen Biss
- Jan 31, 2018
- 5 min
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...
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Stephen Biss
- Jan 15, 2018
- 6 min
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...
3 views0 comments
Stephen Biss
- Jan 13, 2018
- 7 min
Control Tests do not displace Formal Calibration Intervals
Purpose: To separate conceptually control tests from calibration To obtain an admission that there are no "assessors" in the province of...
6 views0 comments
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