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Purpose: To obtain an acknowledgement from a CFS scientist that even though he would exclude data outside (the Maximum Permissible Error...

Purposes of this cross-examination: To challenge the opinion that data outside maximum permissible error (outside +/- 10 mg%) should be...

Purpose: To establish a better methodology for calculating precision of an approved instrument in service. To apply CFS methodology using...

Purpose: To elicit evidence to the Court as to the inadequacy of calculation of the instrument's precision by the local police service,...

Purpose: To obtain admissions about the use of historical control test data by the Centre of Forensic Sciences in Toronto to calculate...

The approved instrument referred to, in the case below, was sent out for a recalibration, a few days after the client's subject tests. We...

Purpose: To explore the lack of a lab setting when accuracy and precision of the instrument are checked on periodic or annual inspection....

Purpose: To remind the Court of the concept of "reliability" used by the SCC in St-Onge. To educate the Court as to the definitions of...

Purpose: To obtain admissions respecting the inadequacy of ATC / CFS recommendations in requiring "stability of metrological...

Sample cross-examination on the ATC and CFS Position Paper policy that every test stands on its own - that "reliability" has nothing to...

Purpose: To establish that the international literature indicates that all of the approved instrument's software is legally relevant to...

Sample Cross-examination of CFS expert on OIML standard R126 (2012) respecting maximum permissible error in evidentiary breath...

Purpose: To suggest that an AI is a quantitative analysis instrument and an ASD is a qualitative analysis instrument and suggest that the...

Purpose: To neutralize the government scientist's assertion that anomalous data should be excluded from calculation of precision. To...

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

Purpose: To obtain an admission that the ATC Position Paper of 2012 contradicts the federal government policy in the Fairness at the...

Purpose: To separate conceptually control tests from calibration To obtain an admission that there are no "assessors" in the province of...

Purpose: To obtain admissions from the Crown expert to enable argument that Vallentgoed can be distinguished on its facts - particularly...

Why is disclosure of information about the "calibration" of the approved instrument essential to any assessment of the reliability of a...

Purpose: To obtain admissions that the published studies dealing with the linearity of approved instruments assume a new instrument...