🚔 HacX — Team Galileo

HACX 2025 Hackathon Project | Reimagining Singapore's Neighbourhood Police Posts

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🎯 Problem

Singapore Police Force NPPs/NPCs handle many transactions that don't require direct officer involvement — yet the current self-help infrastructure is rigid, frustrating, and inaccessible:

• 9.8% of elderly citizens (65+) own 0 digital devices, yet they make up 20.7% of the population
• Existing self-help kiosks require users to manually fill forms in English, using complex police terminology
• The learning curve is very steep
• The current Found Property Drop Box has no monitoring capability, and fragile items are at risk of being broken
• Although an "Officer Clif" chatbot already exists, it is limited and not voice-driven

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💡 Our Solution

Reimagine NPPs/NPCs as friendly, intelligent, autonomous hubs.

We built a Voice-First, AI-powered self-help kiosk system that transforms how citizens interact with the police post — no typing, no jargon, no barriers.

Our system is:

• ❌ NOT dictation
• ❌ NOT text-to-speech
• ✅ A human voice agent that is intelligent and adapts to the situation

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✨ Key Features

🎙️ Voice-First Incident Reporting Interface

Citizens can walk up and talk to the kiosk in natural language. The AI voice assistant — Officer Clif — guides them through the reporting process conversationally, in their own language.

• Powered by Azure AI VoiceLive (real-time WebSocket API) and GPT-4o Realtime Preview
• Dynamically fills in the report form as the user speaks
• Confirms each field back to the user before committing
• Supports multiple languages (responds in the user's spoken language)
• Professional, calm, and empathetic persona designed specifically for policing contexts

📦 Smart Found Property Drop Box

A redesigned drop box that allows citizens to return lost items they have found.

• Modular design for needs-based construction with less complexity
• Hardware interface allows officers to monitor the contents of the box remotely
• Communicates with backend via serial (Arduino) + Flask API
• Reduces the need for fragile items to be handled unsafely

🖥️ Self-Help Kiosk — Incident Reporting

A clean, accessible web interface for the Woodleigh Neighbourhood Police Post.

• Multi-section guided forms with smart validation
• Voice assistant embedded directly into the reporting flow
• Handles both traffic incidents and general police reports

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🏗️ Architecture

┌──────────────────────────────────────┐
│         Next.js 15 Frontend          │
│  (React 19, TypeScript, Tailwind CSS)│
│                                      │
│  ┌────────────────┐  ┌─────────────┐ │
│  │  Report Form   │  │ Voice Agent │ │
│  │  (multi-step)  │  │ (Officer    │ │
│  │                │  │  Clif)      │ │
│  └────────────────┘  └──────┬──────┘ │
└─────────────────────────────┼────────┘
                               │ WebSocket (Azure VoiceLive)
                    ┌──────────▼──────────┐
                    │   Azure AI Services │
                    │  GPT-4o Realtime    │
                    └─────────────────────┘

┌──────────────────────────────────────┐
│         Flask Python Backend         │
│  (Flask, Flask-CORS, PyAudio)        │
│                                      │
│  - Serial interface to Arduino       │
│  - Drop Box LED / sensor control     │
│  - Azure Identity integration        │
└──────────────────────────────────────┘
                    │ Serial (USB)
           ┌────────▼────────┐
           │  Arduino / IoT  │
           │  Hardware Layer │
           └─────────────────┘

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🛠️ Tech Stack

Layer	Technology
Frontend	Next.js 15, React 19, TypeScript, Tailwind CSS v4
Voice AI	Azure AI VoiceLive, GPT-4o Realtime Preview
Backend	Python 3.13, Flask, Flask-CORS
Hardware	Arduino (Serial over USB via @serialport)
Cloud	Azure AI Services, Azure Identity
UI Components	Radix UI, Lucide React

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🚀 Getting Started

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🌟 The Bigger Vision

The Future of Policing: Intelligent Agentic Models that can have conversations with users.

This project is a step toward making every Neighbourhood Police Post an accessible, intelligent, and autonomous hub — reducing officer workload on routine transactions while dramatically improving the citizen experience, especially for elderly and non-English-speaking residents.

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Built at HacX 2025 by Team Galileo 🚀