Jusletter IT

NAI: Towards Transparent and Usable Semi-Automated Legal Analysis

  • Authors: Tomer Libal / Alexander Steen
  • Category of articles: Juristische Informatik-Systeme & Legal Tech
  • Category: Articles
  • Field of law: LegalTech
  • Collection: Conference proceedings IRIS 2020
  • DOI: 10.38023/2eb63e02-f13e-45f5-9a7b-d7fe55e42c6c
  • Citation: Tomer Libal / Alexander Steen, NAI: Towards Transparent and Usable Semi-Automated Legal Analysis , in: Jusletter IT 27 Mai 2020
A prototype for automated reasoning over legal documents, called NAI, is presented. It uses formalized representations of legal documents that are created using a graphical editor that is also provided as part of NAI. The prototype supports several automated reasoning procedures over the given formalizations, including the execution of user queries. The application of NAI is studied using a fragment of the Scottish Smoking Prohibition (Children in Motor Vehicles) Act 2016.


  • 1. Introduction
  • 2. The NAI Suite
  • 2.1. The Annotation Editor
  • 2.2. The Reasoning Technology
  • 2.3. Cloud-Based External Services
  • 3. Case Study: Scottish Smoking Regulation
  • 3.1. Formalizing the Article
  • 3.2. Resolving Legal Questions using the Query Editor
  • 4. Summary and Discussion
  • 5. Literature

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