This article examines Fraud and Financial Crime in Mobile Money Systems: Detection, Prevention, and Prosecution: Decolonial Reflections with a focused emphasis on Tanzania within the field of Energy. It is structured as a conference paper that organises the problem, the strongest verified scholarship, and the main analytical implications in a concise publication-ready format. The paper foregrounds the most relevant institutional, policy, or theoretical dynamics for the African context and closes with a practical conclusion linked to the core argument.