weight of evidence (2)

A weight of evidence approach is typically employed for food authenticity investigations in situations where screening tests do not provide a definitive answer, or where there is no applicable legal limit for what is being evaluated. In these types of situations, gathering and assessing several different forms of evidence may aid in coming to a conclusion on the authenticity of a sample/product.

This e-seminar is based on a “Toolkit to Support Weight of Evidence Approaches for Food Authenticity Investigations,” that has been published by Defra, and provides guidance and best practice on how to approach a weight of evidence assessment, in order to verify the authenticity of food and drink samples where no single confirmatory test result is currently available. It has been designed to support anyone who is required to make an assessment on the authenticity of a food or drink sample based on a combination of information from several independent sources but may also be of interest to anyone in the food and drink industry who undertakes supply chain audits and due diligence checks as part of any authenticity investigation.

This e-seminar was produced by the Joint Knowledge Transfer Framework for Food Standards and Food Safety Analysis, which is co-funded by the UK Department for Environment, Food and Rural Affairs, the Food Standards Agency, Food Standards Scotland and the Department for Science Innovation and Technology via the Government Chemist at LGC.

This eSeminar has been added to the eSeminar tab of the FAN Training section and can also be viewed here:

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12374645658?profile=RESIZE_710xA Toolkit to Support Weight of Evidence Approaches for Food Authenticity Investigations has been published by Defra.

Applying a weight of evidence approach for food authenticity investigation is relevant in situations where screening tests which do not give a definitive answer are used, for example with non-targeted fingerprinting approaches for food authenticity testing which rely on probability-based interpretation of the data. In these situations, gathering and assessing the weight of evidence can help in drawing a conclusion on the authenticity of a sample/product.

This document provides a structured outline on how to approach a weight of evidence assessment to verify the authenticity of food and drink samples where there is no single confirmatory test result available.

It has been developed by a sub-group of Defra’s Authenticity Methods Working Group (AMWG), drawing on analytical testing, enforcement, and food industry expertise.                                                                                                                                                                                             

Access the Weight of Evidence Toolkit.                                                                                                                                                                                                                                                                                                                                                                                                                 This report has also been added to the 'Guides' tab of the 'Tools_Guides_reports' part of our Food Fraud Prevention section.

 

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