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Many years ago I asked for timely disclosure/production of a representative bottle of the alcohol standard lot used during the breath...

Tip 35: The simplest method of communicating the last change date of the alcohol standard solution placed into the wet-bath simulator is...

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)...

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,...

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 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...

Tip 34: The use of an alcohol standard during evidentiary breath testing in Canada was not mentioned in the Criminal Code as a condition...

Purpose: To connect the concept of measurement standard, reference standard, étalon to Canadian law, Canadian constitutional law, and...

Purpose: To cross-examine a CFS scientist on use of Guth 2100 wet-bath simulator under Canadian cold operating conditions To build a case...