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3 - Making sense of expert disagreement

Published online by Cambridge University Press:  01 July 2009

Déirdre Dwyer
Affiliation:
University of Oxford
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Summary

3.1 Introduction

Chapter 2 provided an argument that the court as tribunal of fact possesses a limited epistemic competence to assess expert evidence. When the court determines the facts of the case before it, it is able to draw a limited set of justified inferences from the evidence presented by experts. It might reasonably be suspected that this is in some sense cheating, because, although there are some concerns about whether the courts can form such justified inferences, the more prevalent concern is whether the court is able to do so when confronted with conflicting expert opinions. This is not cheating, however. The question of epistemic competence has been considered as a necessary preliminary point in Chapter 2, in the same way that Chapter 1 spent necessary time laying down the foundation of the epistemology adopted in my argument, so that in this chapter it is now possible to turn to examining in greater detail the specific problem of how the courts are to decide where the expert evidence in a case offers more than one interpretation.

The body of the chapter is divided into five parts. In Section 3.2, I examine why legal and expert communities differ in their attitudes towards disagreement in drawing inferences from facts. The two main areas for disagreement concern, first, which set of generalizations (which we might call a ‘theoretical framework’) should be applied to a given set of base facts, and, secondly, how those generalizations should be applied to those base facts.

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Publisher: Cambridge University Press
Print publication year: 2008

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