Trafficking in Human Beings (THB) is a complex challenge for Police and Border Guard Authorities around the world, as organised criminal networks operate across borders, exploit digital environments to conceal and expand their activities, and constantly adapt their modus operandi. As a result, investigators are often required to make critical decisions under significant time pressure and with only partial or fragmented information. In this context, training on recent trafficking trends, investigation methods, interrogation techniques, and tools that support operational work cannot be limited to the simple transfer of information. In VANGUARD, training is therefore approached as a structured and multifaceted learning process that places practitioners’ needs at the centre. It is not treated simply as a process of delivering knowledge, but as a carefully designed learning experience shaped around the realities of field work.

Particularly, the project adopts a multimodal approach that combines core principles from pedagogy and adult education along with established approaches such as the train-the-trainer model. A central element of the VANGUARD’s training methodology is informed by insights from Cognitive Load Theory, which underlines the limited capacity of human working memory, specifically when dealing with complex and unfamiliar information. This is particularly relevant in the context of THB, where cases often involve multiple actors, regulatory frameworks, and socio-economic dimensions; if training is not structured carefully, it can easily become overwhelming. This is even more important for security practitioners, who are expected to take part in continuous training alongside their daily operational responsibilities, often under high pressure and stress.

To properly address these issues, VANGUARD structures its learning modules into smaller, “manageable” learning units, allowing participants to build understanding gradually without becoming overwhelmed. Complex concepts are broken down into clear, digestible elements and presented step by step, while realistic case scenarios make sure that the training is closely related to the operational realities of security practitioners. Participants do not just receive information passively; instead, they actively engage in the learning process, which helps recreate the environments in which they operate and supports the development of practical, usable skills. Additionally, this approach is key in promoting intrinsic motivation as it allows individuals to personally engage with the material, ensuring that content is relevant to their professional roles, and giving them a certain degree of autonomy as they navigate the training material and scenarios.

Overall, within VANGUARD, the training is structured around three main axes: (i) training materials on THB, (ii) a VR-based serious game for security practitioners, and (iii) handbooks and user guides dedicated to the use of the technological solutions being developed. The development of training materials on THB (e.g., dedicated THB learning modules and courses, guidelines and THB manuals, infographics, videos and toolkits) builds on findings from societal-oriented desktop and empirical research, as well as feedback from consortium end-user partners (Police and Border Guard Authorities), aiming to combine scientific research and practical knowledge to address real-world challenges and provide up-to-date evidence-based solutions that enhance the effectiveness of enforcement. This knowledge also supports the development of VR-based games for security practitioners, designed to assist them in identifying THB activities, potential victims and perpetrators, and conducting interviews with them. Finally, the dedicated handbooks/manuals for the VANGUARD technological solutions/tools provide end-users with practical knowledge, supported by visual representations, on how to use each tool in real-world conditions, thereby bridging the gap between theory and operational application. Such a three-dimensional training approach equips security practitioners with the necessary tools to address real societal needs and reflect actual criminal behaviour, thereby enhancing operational capacity, encouraging innovation, and fostering a deeper understanding of organised crime, ultimately leading to more effective and impactful policing.

By combining evidence-based learning design with realistic operational contexts, VANGUARD demonstrates that effective capacity building is not only about transferring knowledge. It is about enabling practitioners to think critically, act decisively, and adapt to the evolving nature of THB.