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Mar 29, 2018
1 min

Police Fail to Correct a Linearity Problem on In-House Annual Inspection

Purpose: To obtain an admission from the CFS scientist that the disclosed annual maintenance records indicate that the police failed to take any steps to correct control tests on inspection that indicated the instrument's response had shifted well beyond not only a 3 mg% tolerance, but well beyond a 10mg% tolerance. To suggest to the CFS scientist that the calibration curve has shifted. To suggest to the CFS scientist that the instrument's response is no longer as accurate an

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Mar 28, 2018
1 min

Police No Longer Follow ATC Best Practices Respecting Tolerance

Purpose: To demonstrate that when the particular instrument was first placed into service, the tolerance verified by the independent authorized service centre for each of three test values was +/- 3 mmg/100mls. To demonstrate that the initial verification matched the manufacturer's published specifications. To demonstrate that when the particular instrument is subsequently being annually checked at each of the three test values, the checklist indicates that the acceptable tol

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Jan 23, 2018
1 min

Being Intolerant Depends on Humans not the Machine

Purpose: To challenge the Crown's assertion that the AI will automatically shut down if anything is out of tolerance or ATC or manufacturer's specifications. Let's suppose the Crown's expert says this about the Intoxilyzer 8000C: "If the calibration check is outside the acceptable range, you’re not going to be able to proceed with testing." The expert is saying in other words, the instrument is smart enough to make sure that cal. checks are foolproof, and you can't proceed wi

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