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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...
Stephen Biss
Jul 15, 20222 min read
4 views
0 comments
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...
Stephen Biss
Jun 10, 20223 min read
20 views
0 comments


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...
Stephen Biss
May 28, 20224 min read
10 views
0 comments


Know the Simulator Probes
Tip 24: Knowledge of #duisimulator probes assists understanding of function & malfunction of thermistor, heater, and thermometer(s). Many...
Stephen Biss
Apr 30, 20223 min read
7 views
0 comments


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...
Stephen Biss
Dec 3, 20212 min read
18 views
0 comments


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...
Stephen Biss
Feb 14, 20203 min read
15 views
0 comments


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...
Stephen Biss
Apr 27, 20184 min read
12 views
0 comments


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...
Stephen Biss
Mar 25, 20186 min read
13 views
0 comments


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...
Stephen Biss
Feb 9, 20187 min read
6 views
0 comments


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...
Stephen Biss
Feb 7, 20184 min read
9 views
0 comments


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
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


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...
Stephen Biss
Jan 13, 20187 min read
33 views
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