Politeia
The AI legislation expert for all your questions
AI chatbot for Flemish local authorities
Flemish local authorities navigate a vast amount of complex legislation and professional literature every day. Since no one can know hundreds of books by heart, Lemon developed an intelligent chatbot that makes these sources directly accessible.
By transforming analogue documents and PDFs into a structured digital system, crucial information can now be found within seconds. The result is an AI-powered assistant that supports employees with accurate answers, always backed by the most up-to-date sources.
RAG framework with source citations
The chatbot uses a Retrieval-Augmented Generation (RAG) framework to maximise reliability. When an employee asks a question, the system rapidly searches a database containing 300 digital books, thousands of editions of the Belgian Official Gazette, and parliamentary questions and answers. This contextual data is then processed by a Large Language Model (LLM) to generate an accurate answer.
This significantly reduces the risk of AI hallucinations: the system generates answers only from the loaded documentation and provides a direct link to the source, with the relevant passage highlighted. This allows employees to quickly find and verify the applicable legislation.
Smart data processing through vectors & real-time updates
Finding the right legislation requires the highest level of precision. That's why the chatbot combines vector embeddings, which understand the deeper meaning behind a question, with keyword-based searches. Every night, the system is automatically updated with the latest data from the Belgian Official Gazette. This ensures that employees can always base their decisions on the most up-to-date information.
Scalability and smart trade-offs
A modular architecture was central to the development, allowing the system to easily expand as new sources are added. The performance of different scenarios was carefully measured and compared with the costs of the underlying AI models. Based on several possible solutions, Politeia was able to make an informed choice between speed, accuracy and budget.
This resulted in a scalable platform that delivers maximum quality at an optimised monthly cost.
Politeia gives employees a digital expert at their fingertips
The Politeia chatbot is transforming the day-to-day work of local authorities. Employees no longer need to manually browse through endless PDFs. Instead, they receive clear summaries with reliable source references. By striking the right balance between advanced AI and cost efficiency, Lemon created a solution that is both technically robust and financially sustainable.
The result? A digital expert that knows the legislation inside out and gives local government employees the confidence and certainty they need.
