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Many years ago Ontario defence lawyers cross-examined breath techs on "how much room there was" on the particular Intoxilyzer 5000C to...

Tip 41: Changing breath room ambient conditions can reduce "system calibration check" and "system blank test" reliability. Any...

If you served wine or beer at a pub in ancient Egypt the beverages were measured out using liquid volume instruments like these. Each...

Tip 25: Obtain a copy of the Guth Laboratories, Inc. wet-bath "Model 2100 Simulator Operation Manual" and study the "Model 2100-Block...

Tip 27: Does the Inspector use a traceable reference thermometer, that is accurate and precise, to at least two decimal places, to...

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...

Does partial automation of error-checking in an approved instrument: specifically diagnostics tests, air blanks, cal. checks, and maximum...

Tip 37: Defence lawyers need to study the video - does the qualified technician take a random (unrelated to the matter before the Court)...

Purpose: To suggest that there is empirical evidence in the matter before the Court of change in response by the approved instrument at...

Tip 38: One of the best ways to control wet-bath simulator alcohol standard continuity is to use alphanumeric police seals and record...

Tip 36: Some police detachments have been known to write the manufacturer name, lot number, name/badge of solution change officer,...

What is a Purge Fail on an Intoxilyzer 8000C ? What is a Purge File on an Intoxilyzer 5000C ? How does this phenomenon affect reliability...

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...

Tip 29: Obtain disclosure, of the full #duisimulator alcohol standard log, to search for anecdotal notes of difficulties experienced by...

Tip 47: A calibration check using a wet-bath simulator containing alcohol standard is not reliable if information is missing about air...

Experiment studying the phenomenon of disappearing alcohol It is easy to replicate this experiment on an Intoxilyzer® 5000. It is more...

Tip 45: Study the breath room video and learn everything you can about the breath room and detachment. Watch for: Has the qualified...

Tip 39: The key to usefulness of alphanumeric seals on a #duisimulator is whether or not the incoming seal number on the subsequent...

Warning: This blog entry was written prior to Bill C-46 during an era when forensic science in Ontario was more transparent. Prior to R....

The video below displays a variety of alcohol standards that could be used in a #duisimulator for evidentiary breath testing for...