The research in this paper considers the adoption and diffusion of mobile technologies for t-Government transformation to police force tasks and processes. Specifically, it undertakes an analysis of the use and impact of two mobile technologies (Mobile Data Terminals and Tablet PCs) on three specialist groups of police in Victoria, Australia. Technology and task issues are identified that lead to performance effectiveness and virtualization of policing activities. The research extends the theory of task technology fit with the theory of virtualization to explain the transformation of police processes as an outcome of mobile technology applications. The methodology for the research included a qualitative analysis of data gathered from informal interviews, observations and focus groups guided by initial conceptual observations from the literature. The findings emphasise that mobile technologies are important tools for police organizations as they implicitly support and enhance individual and group performance as well as transformed processes. However, specific mobile technology issues, network support for connections and a need for training would achieve greater adoption efficiencies.