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  • Stephen Biss

Precision Testing Using Only 2 Data Points is Inadequate to Calculate Precision


Purpose:

To educate the Court as to the inadequacy of calculation of the instrument's precision by the local police service, close in time to the subject tests.

To obtain admissions from the CFS expert as to proper methods for calculating precision.

To confirm evidence that the local police had stopped doing linearity checks by the time of this periodic inspection.

#annualmaintenance #precision #inspection #stabilitytesting

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