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This is a sample cross-examination of an Ontario CFS scientist on the procedure used to perform an initial factory calibration (or a...

Let's suppose that as a result of a disclosure request or Freedom of Information application you find an electronic or paper document...

Purpose: To explain to the Court, the differences between ABA (Esc Esc B) and ACA (Esc Esc C) sequences To confirm that ABA sequences are...

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

Let's suppose that you obtain disclosure or Freedom of Information documents respecting In-house Periodic Inspections by your local...

Purpose of this sample cross-examination: To demonstrate that when the particular instrument was first placed into service, the tolerance...

Purpose: To explain the function of internal standards, the ITP, internal test procedure to the Court. To obtain an admission that the...

Purpose: To educate the Court as to the "why" of the unreliability of an approved instrument to measure across the measuring interval if...

Purpose: To obtain an admission from a CFS scientist that expectation of ATC Best Practices Recommendation is for annual inspection of...

Purpose: To obtain admissions as to the differences in inspections, in inspection standard operating procedures, and completeness of an...

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

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 show that the ATC recommendations for operational procedures at time of use do not account for the need during inspections to...

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

This blog entry contains excerpts from the cross-examination of a CFS scientist during an over 80 trial. It was suggested to the...