Multi-Agent Simulator Drives Language Models for Legal Intensive Interaction

Shengbin Yue, Ting Huang, Zheng Jia, Siyuan Wang, Shujun Liu, Yun Song, Xuanjing Huang, Zhongyu Wei


Abstract
Large Language Models (LLMs) have significantly advanced legal intelligence, but the scarcity of scenario data impedes the progress toward interactive legal scenarios. This paper introduces a Multi-agent Legal Simulation Driver (MASER) to scalably generate synthetic data by simulating interactive legal scenarios. Leveraging real-legal case sources, MASER ensures the consistency of legal attributes between participants and introduces a supervisory mechanism to align participants’ characters and behaviors as well as addressing distractions. A Multi-stage Interactive Legal Evaluation (MILE) benchmark is further constructed to evaluate LLMs’ performance in dynamic legal scenarios. Extensive experiments confirm the effectiveness of our framework.
Anthology ID:
2025.findings-naacl.365
Volume:
Findings of the Association for Computational Linguistics: NAACL 2025
Month:
April
Year:
2025
Address:
Albuquerque, New Mexico
Editors:
Luis Chiruzzo, Alan Ritter, Lu Wang
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
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Pages:
6537–6570
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URL:
https://preview.aclanthology.org/Ingest-2025-COMPUTEL/2025.findings-naacl.365/
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Cite (ACL):
Shengbin Yue, Ting Huang, Zheng Jia, Siyuan Wang, Shujun Liu, Yun Song, Xuanjing Huang, and Zhongyu Wei. 2025. Multi-Agent Simulator Drives Language Models for Legal Intensive Interaction. In Findings of the Association for Computational Linguistics: NAACL 2025, pages 6537–6570, Albuquerque, New Mexico. Association for Computational Linguistics.
Cite (Informal):
Multi-Agent Simulator Drives Language Models for Legal Intensive Interaction (Yue et al., Findings 2025)
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https://preview.aclanthology.org/Ingest-2025-COMPUTEL/2025.findings-naacl.365.pdf