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Police Services Use Control Test Data Outside MPE to Calculate Precision
Purpose: To obtain an acknowledgement from a CFS scientist that even though he would exclude data outside (the Maximum Permissible Error...
Stephen Biss
Jan 31, 20185 min read


Defence Methodology Calculating Precision in the Field
Purpose: To establish a better methodology for calculating precision of an approved instrument in service. To apply CFS methodology using...
Stephen Biss
Jan 29, 20186 min read


Precision Testing Using Only 2 Data Points is Inadequate to Calculate Precision
Purpose: To elicit evidence to the Court as to the inadequacy of calculation of the instrument's precision by the local police service,...
Stephen Biss
Jan 28, 20185 min read
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