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Stephen Biss
Nov 30, 20228 min read
Reliability: Ambient Conditions
Tip 41: Changing breath room ambient conditions can reduce "system calibration check" and "system blank test" reliability. Any...
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Stephen Biss
Nov 17, 20223 min read
Study the Block Diagram in the Wet-Bath Simulator Manufacturer's Manual
Tip 25: Obtain a copy of the Guth Laboratories, Inc. wet-bath "Model 2100 Simulator Operation Manual" and study the "Model 2100-Block...
14 views0 comments


Stephen Biss
Nov 10, 20222 min read
Calibration Check on Periodic Inspection of Wet-bath Simulator
Tip 27: Does the Inspector use a traceable reference thermometer, that is accurate and precise, to at least two decimal places, to...
14 views0 comments


Stephen Biss
Nov 3, 20223 min read
Continuity of Alcohol Standard: CalGuard Feature
Tip 40: Some police services take the position that they don't need to use seals between the simulator housing and the jar. Failure to...
7 views0 comments


Stephen Biss
Oct 26, 20222 min read
Continuity: Write on Empty Bottle
Tip 35: The simplest method of communicating the last change date of the alcohol standard solution placed into the wet-bath simulator is...
8 views0 comments


Stephen Biss
Oct 15, 20224 min read
Continuity: From the Box
Tip 37: Defence lawyers need to study the video - does the qualified technician take a random (unrelated to the matter before the Court)...
13 views0 comments


Stephen Biss
Oct 6, 20221 min read
Certificate of Calibration of a NIST mercury thermometer
Tip 14: Whenever police purchase a new NIST mercury thermometer, the Canadian distributor provides them with a "Guth Laboratories, Inc....
16 views0 comments


Stephen Biss
Oct 3, 20222 min read
Continuity: Use of a Seal
Tip 38: One of the best ways to control wet-bath simulator alcohol standard continuity is to use alphanumeric police seals and record...
12 views0 comments


Stephen Biss
Sep 30, 20221 min read
Continuity: Whiteboard or blackboard method
Tip 36: Some police detachments have been known to write the manufacturer name, lot number, name/badge of solution change officer,...
21 views0 comments


Stephen Biss
Sep 16, 20222 min read
Appendix E: Location & Anecdotal Notes in Log
Tip 30: The CFS 8000C Training Aid of 2013 at page 191 of 238, Appendix "E" recommends that the Alcohol Standard Log, updated by the...
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Stephen Biss
Sep 2, 20222 min read
Reliability: Cal Checks in the Context of Earlier & Later Ambient Fails
Tip 47: A calibration check using a wet-bath simulator containing alcohol standard is not reliable if information is missing about air...
14 views0 comments
Stephen Biss
Aug 31, 20222 min read
Reliability: Disabling Ambient Fail Exception, Making Alcohol Disappear
Tip 45: Study the breath room video and learn everything you can about the breath room and detachment. Watch for: Has the qualified...
12 views0 comments


Stephen Biss
Aug 28, 20225 min read
Reliability: Air Blanks "System Blank Test"
Tip 43: A properly functioning approved instrument air blank system (including the instrument itself, the ambient environment around the...
15 views0 comments


Stephen Biss
Aug 18, 20222 min read
Ambient Interferents Compromise Reliability of Control Tests
Tip 48: The reliability of control tests using the alcohol standard in a wet-bath #duisimulator may be compromised by the presence in the...
22 views0 comments


Stephen Biss
Jul 15, 20222 min read
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...
4 views0 comments


Stephen Biss
Jun 24, 20221 min read
Are police officers tempted to record 34.00 without actually checking the simulator thermometer?
Tip 21: A CFS scientist has acknowledged police sometimes are tempted to record 34.0. Evidence of a CFS scientist, Dr. L, April 10, 2013,...
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Stephen Biss
May 28, 20224 min read
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...
10 views0 comments


Stephen Biss
May 6, 20222 min read
Location is Everything
Tip 31: Location is everything when it comes to a #duisimulator in Ontario. The CFS Training Aid recommends that the alcohol standard be...
8 views0 comments


Stephen Biss
Apr 30, 20223 min read
Know the Simulator Probes
Tip 24: Knowledge of #duisimulator probes assists understanding of function & malfunction of thermistor, heater, and thermometer(s). Many...
7 views0 comments


Stephen Biss
Apr 19, 20221 min read
Chips & Cracks in the Simulator Jar
Tip 28: Make inquiries about chips or cracks in the simulator jar. Use a FOI application, Stinchcombe, O'Connor, or cross-examine to make...
39 views0 comments
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