A formal model of adjudication dialogues

Artificial Intelligence and Law 16 (3):305-328 (2008)

Abstract
This article presents a formal dialogue game for adjudication dialogues. Existing AI & law models of legal dialogues and argumentation-theoretic models of persuasion are extended with a neutral third party, to give a more realistic account of the adjudicator’s role in legal procedures. The main feature of the model is a division into an argumentation phase, where the adversaries plea their case and the adjudicator has a largely mediating role, and a decision phase, where the adjudicator decides the dispute on the basis of the claims, arguments and evidence put forward in the argumentation phase. The model allows for explicit decisions on admissibility of evidence and burden of proof by the adjudicator in the argumentation phase. Adjudication is modelled as putting forward arguments, in particular undercutting and priority arguments, in the decision phase. The model reconciles logical aspects of burden of proof induced by the defeasible nature of arguments with dialogical aspects of burden of proof as something that can be allocated by explicit decisions on legal grounds.
Keywords Legal argument  Legal procedure  Adjudication  Dialogue games
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DOI 10.1007/s10506-008-9066-4
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References found in this work BETA

The Uses of Argument.Stephen E. Toulmin - 1958 - Cambridge University Press.
Argument-Based Extended Logic Programming with Defeasible Priorities.Henry Prakken & Giovanni Sartor - 1997 - Journal of Applied Non-Classical Logics 7 (1-2):25-75.
Mathematical Models of Dialogue.C. L. Hamblin - 1971 - Theoria 37 (2):130-155.

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Argumentation Without Arguments.Henry Prakken - 2011 - Argumentation 25 (2):171-184.

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