Abstract
The formation of organisational tacit knowledge has been studied in the most part using only qualitative explanations such as case studies including those on the workings of communities of practice. From this perspective, tacit knowledge is submersed and consequently it is difficult to quantify. In our community of communities of practice case study we use quantitative social network analysis techniques to explore the process of tacit knowledge exchange among expert knowledge workers – forensic scientists. Conceptually, we search for more structured relational mechanisms that shape tacit knowledge flows occurring between participant actors in communities of practice, in their day-to-day knowledge intensive environments.