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A formal model of legal proof standards and burdens

: Gordon, Thomas F.; Walton, Douglas

Postprint urn:nbn:de:0011-n-1971443 (207 KByte PDF)
MD5 Fingerprint: 898b579c2f8237475a1e6c120d8370f4
Erstellt am: 13.3.2012

Emeren, F.H. van (Ed.); Garssen, B. (Ed.); Godden, D. (Ed.); Meuffels, B. (Ed.) ; International Society for the Study of Argumentation -ISSA-:
7th Conference of the International Society for the Study of Argumentation 2010. Proceedings : Amsterdam, June 29 to July 2, 2010
Amsterdam: Sic Sac, 2011
International Society for the Study of Argumentation (ISSA Conference) <7, 2010, Amsterdam>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer FOKUS ()
argumentation; artificial intelligence

This paper presents a formal model that enables us to define five distinct types of burden of proof in legal argumentation. Four standards of proof are shown to play a vital role in defining each type of burden. These standards of proof are defined in a precise way suitable for computing in argumentation studies generally, but are based on a long tradition of their use in law. The paper presents a computational model based on these notions that represents a dialectical process that goes from initial claims where issues to be decided are set, and produces a justification for arriving at a decision for one side or the other that can withstand a critical evaluation by a particular audience. The role of the audience can be played by the respondent in some instances, or by a neutral third party audience, depending on the type of dialogue. The paper builds on previous work (Gordon, Prakken and Walton, 2007; Gordon and Walton, 2009) that has applied the Carneades model to studying burden of proof in legal argumentation.