PROSLEX: A Novel Dataset for Expert-Annotated Legal Statute Prediction for Indian Judiciary

• URL: http://arxiv.org/abs/2608.08830v1
• Date: Sun, 09 Aug 2026 17:24:09 GMT
• Title: PROSLEX: A Novel Dataset for Expert-Annotated Legal Statute Prediction for Indian Judiciary
• Abstract summary: We present PROSLEX, a comprehensive dataset comprising 1,623 expert-annotated legal documents from the Indian context.<n>We evaluate various prompting strategies, including zero-shot, few-shot, chain-of-thought, and tree-of-thought, to generate both statute predictions and their corresponding legal rationales.<n>Our evaluation framework measures not only performance but also the coherence and legal validity of generated explanations, positioning PROSLEX as a benchmark for developing explainable AI systems.
• Score: 7.985120216055807
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Legal Statute Prediction (LSP) involves automatically identifying relevant legal statutes given factual descriptions in legal documents, typically framed as a multi-label classification task within natural language processing and information retrieval research. While recent advances have begun incorporating Large Language Models (LLMs) for statute prediction, current approaches primarily focus on accuracy metrics without addressing the critical need for legal reasoning, a fundamental requirement in judicial contexts where decisions must be explainable and justifiable. To address this research gap, we present PROSLEX (PRediction Of Statutes and LEgal eXplanation), a comprehensive dataset comprising 1,623 expert-annotated legal documents from the Indian context. Each document is paired with statute predictions and detailed explanations, totaling 7,450 explanations, capturing the underlying legal reasoning. Using this dataset, we systematically evaluate various prompting strategies, including zero-shot, few-shot, chain-of-thought, and tree-of-thoughts approaches, to generate both statute predictions and their corresponding legal rationales. Our evaluation framework measures not only predictive performance but also the coherence and legal validity of generated explanations, positioning PROSLEX as a benchmark for developing explainable AI systems that can support legal practitioners while advancing research in interpretable legal NLP. To ensure reproducibility, we have made our PROSLEX dataset and model code available on GitHub: https://github.com/subinay494/Legal_Statute_Prediction_Explanation.

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