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Integrating Local LLMs and Knowledge Graphs for Trustworthy Legal Chatbots

A specialised question-answering bot must prioritise robustness, trustworthiness and proper sourcing. While Large Language Models (LLMs) hold promise for improving chatbots, issues such as hallucinations and monolingual limitations pose challenges. In addition, concerns about data security hinder the adoption of hosted LLMs such as OpenAI in many organisations.

Our German Law-bot addresses these challenges by integrating a local LLM with a knowledge graph (KG). We're evaluating several small local LLMs, building workflows incorporating KG retrieval, and refining models to ensure accurate and reliable legal answers. Our focus is on refining answers based on expert feedback.


Basic knowledge of or interest in Large Language Models (LLMs) and Knowledge Graph (KG).


  • Create workflows that merge KG retrieval to improve QA bot capabilities.
  • Understand the performance of local LLMs in German contexts.
  • Implement expert feedback for iterative improvements.
  • Gain insight into AI-driven QA system development through interdisciplinary collaboration.
  • Learn evaluation methods for assessing QA bot performance.



Anahita Pakiman
Anahita Pakiman is Senior Knowledge Graph-Data Scientist Consultant at brox IT-Solutions GmbH, developing graph-oriented retrieval systems and optimizing multi-agent interactions. Pursuing a Ph.D. in Applied AI with a focus on crash simulation knowledge graphs at Bergische Universität Wuppertal. Previously, Data Scientist at Fraunhofer SCAI specializing in knowledge graph development for vehicle processes.

Christian  Beil
Christian Beil is Business Unit Lead at brox IT-Solutions GmbH, driving data and AI initiatives. Senior roles at medpex, Bonfire.com, ISO-Gruppe, and Scarus Software GmbH. Extensive Java expertise, leadership, and data quality analysis. Committed to innovation and excellence.


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