#drift

Maybe the Instrument Is No Longer Linear Enough to Be An "8000C"

Purpose: To explore the analytical variability of the 8000C as determined by the Alcohol Test Committee during evaluation of the 8000C...

Start By Defining "Reliability" don't focus on "Accuracy"

Purpose: To remind the Court, "thing 1" in 258(1)(c) is unconstitutional under Charter 11(d) (R v St-Onge) but is saved by section 1. To...

3 Consecutive Annual Inspections Reveal a Trend Towards Unreliability

Let's suppose that you obtain, as the result of disclosure or a Freedom of Information application of paper or electronic documents,...

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...

Response Drifts Over Time

In an article relied upon by the SCC in St. Onge, Brian Hodgson stated: Defence lawyers need to educate themselves about the meanings of...

Periodic Inspection Must Be Done Under Stable Lab Conditions

Purpose: To challenge the CFS expert's position that inconvenient data should be excluded for the purpose of calculating precision. To...

Error Rates and Drift in Precision

Purpose: To establish that the ATC/CFS is not sampling from aging instruments out in the field to determine error rates To establish that...

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