In this paper we show how to address legal argumentation as a dialectic process using a metalogic defeasible framework. We provide a formal model in which, the argumentation of the parties can be analyzed computationally. Further we argue that the accommodation of legal reasoning by using hierarchical defeasible theories of  provides a comprehensive alternative for constructing legally acceptable and meaningful theories of case-adapted jurisprudence with the purpose of facilitating legal audits and the preparation of appeals to a higher tribunal.
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