Empirical research in the field of legal interpretation shows that, in many cases, analogy argumentation is complex rather than simple. Traditional analytical approaches to analogy argumentation do not explore that complexity. In most cases analogy argumentation is reconstructed as a simple form of argumentation that consists of two premises and a conclusion. This article focuses on the question of how to analyze and evaluate complex analogy argumentation. It is shown how the pragma-dialectical approach provides clues for analyzing complex analogy argumentation (...) and how the criteria for evaluating analogy argumentation can be used to reconstruct these types of complex analogy argumentation in Dutch case law. The critical questions in the argumentation scheme do not only serve as a tool for analyzing arguments justifying analogy argumentation, but are also helpful in analyzing arguments against a specific analogy argumentation. (shrink)

In legal decisions standpoints can be supported by formal and also by substantive interpretative arguments. Formal arguments consist of reasons the weight or force of which is essentially dependent on the authoritativeness that the reasons may also have: In this connection one may think of linguistic and systemic arguments. On the other hand, substantive arguments are not backed up by authority, but consist of a direct invocation of moral, political, economic, or other social considerations. Formal arguments can be analyzed as (...) exclusionary reasons: The authoritative character excludes—in principle—substantial counterarguments. Formal arguments are sometimes used to conceal value judgements based on substantial arguments. This paper deals with reconstructing problems regarding this strategic use of formal arguments in legal decisions, with a focus on linguistic argumentation. (shrink)

In this paper I investigate the similarities betweenthe dialectical procedure in the pragma-dialecticaltheory and dialectical procedures in AI and Law. I dothis by focusing on one specific type of reasoning inlaw: analogy argumentation. I will argue that analogyargumentation is not only a heuristic forfinding new premises, but also a part of thejustification of legal decisions. The relevantcriteria for the evaluation of analogy argumentationare not to be found at the logical level of inference,but at the procedural level of the discussion. I (...) willproceed as follows. I start with an outline ofPrakken's theory of argumentation frameworks andprocedural models. Then, I will discuss Peczenik'sanalysis of analogy argumentation and try to combineit with the descriptive-normative research ofMacCormick and Summers. Finally, I propose asystematization of the criteria for the evaluation ofanalogy argumentation within the framework of apragma-dialectical notion of an argumentation scheme. (shrink)