⚖️ AI-Powered Legal Decision Support System

🧠 Empowering justice through Artificial Intelligence.
A cutting-edge AI system that predicts relevant IPC sections, estimates punishments, and retrieves similar past cases — enabling law enforcement officers, legal professionals, and judges to make informed, data-driven decisions with speed and accuracy.

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🚀 Overview

The AI-Powered Legal Decision Support System leverages Artificial Intelligence to revolutionize India’s criminal justice process.
It analyzes crime descriptions to predict applicable Indian Penal Code (IPC) sections, recommend appropriate punishments, and retrieve semantically similar past cases.

By integrating SentenceTransformer, ChromaDB, and Google’s Gemini API, the system bridges the gap between unstructured legal text and actionable insights — ensuring faster, fairer, and more consistent judicial outcomes.

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🧠 Core Objectives

• ⚖️ Automate IPC section classification using advanced NLP.
• 🔍 Estimate appropriate punishments aligned with legal precedents.
• 📚 Retrieve relevant historical cases for judicial reference.
• 🚔 Assist law enforcement in accurate and efficient FIR filing.
• 👩‍⚖️ Support judges and legal analysts in data-driven decision-making.

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🧩 Tech Stack

Category	Technologies Used
Frontend	React.js, HTML5, CSS3
Backend	Flask (Python)
AI / NLP	SentenceTransformer, NLTK, Scikit-learn
Database	ChromaDB (Vector Database)
API & Integration	Google Gemini API
Utilities	Pandas, NumPy, PyPDF2
Version Control	Git & GitHub

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🌟 Key Features

• 🔍 IPC Section Prediction – Identifies relevant IPC sections from textual descriptions.
• ⚖️ Punishment Estimation – Suggests punishment ranges based on past judicial data.
• 📚 Case Retrieval – Retrieves and ranks similar past cases using semantic search.
• 💬 AI Summarization – Generates concise summaries of retrieved legal cases via Gemini API.
• 🧠 Context-Aware NLP – Handles first-person, third-person, and mixed legal narratives for robust prediction.
• 📈 Performance Optimized – Achieved up to 77.63% accuracy in IPC classification tasks.

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🧱 System Architecture

Crime Description
↓
SentenceTransformer → Text Embeddings
↓
ChromaDB → Semantic Search
↓
Prediction Model → IPC Sections + Punishments
↓
Gemini API → Case Summaries
↓
Frontend UI → Interactive Results Display

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💻 Installation

1️⃣ Clone the Repository

git clone https://github.com/your-username/AI-Legal-Decision-Support.git
cd AI-Legal-Decision-Support