Law smells: Defining and detecting problematic patterns in legal drafting

Building on the computer science concept of code smells, we initiate the study of law smells, i.e., patterns in legal texts that pose threats to the comprehensibility and maintainability of the law. With five intuitive law smells as running examples—namely, duplicated phrase, long element, large ref...

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Bibliographic Details
Main Authors: COUPETTE, Corinna, HARTUNG, Dirk, BECKEDORF, Janis, BÖTHER, Maximilian, KATZ, Daniel Martin
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2023
Subjects:
Law
Online Access:https://ink.library.smu.edu.sg/sol_research/4521
https://ink.library.smu.edu.sg/context/sol_research/article/6479/viewcontent/s10506_022_09315_w.pdf
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Institution: Singapore Management University
Language: English
Description
Summary:Building on the computer science concept of code smells, we initiate the study of law smells, i.e., patterns in legal texts that pose threats to the comprehensibility and maintainability of the law. With five intuitive law smells as running examples—namely, duplicated phrase, long element, large reference tree, ambiguous syntax, and natural language obsession—, we develop a comprehensive law smell taxonomy. This taxonomy classifies law smells by when they can be detected, which aspects of law they relate to, and how they can be discovered. We introduce textbased and graph-based methods to identify instances of law smells, confirming their utility in practice using the United States Code as a test case. Our work demonstrates how ideas from software engineering can be leveraged to assess and improve the quality of legal code, thus drawing attention to an understudied area in the intersection of law and computer science and highlighting the potential of computational legal drafting.