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Canada's NRC on Traceability
Defence lawyers need to convince the criminal justice system that "traceability" of all forensic measurements is a condition precedent to...
Stephen Biss
Mar 26, 20185 min read


What are the CGPM and BIPM? Is Canada a member?
Purposes: To connect evidentiary breath testing in Canada, the Criminal Code, and the Weights and Measures Act section 4(1) to the Metre...
Stephen Biss
Feb 20, 20184 min read


Traceability of Measurement Result on an Approved Instrument
Purpose: To obtain an admission from the CFS scientist that the traceability of a measurement result on an approved instrument or a truck...
Stephen Biss
Feb 14, 20184 min read


The "known" is the original calibration of the instrument
Purpose: To separate the concepts of "calibration" from "control checks" To clarify that "calibration" is something that happens at the...
Stephen Biss
Jan 10, 20182 min read


Traceability of a Measurement Result
Purpose: To educate the Court about the meaning of "traceability" in measurement science. To obtain an admission that there is a...
Stephen Biss
Jan 9, 201812 min read
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