This chapter examines electronic policing (epolicing), which has played an increasing role in government-management reform and has become an important area for e-government research. Firstly, the strategic framework and development of e-policing are reviewed. A framework of mobile policing is introduced that is derived from the system requirements of both police and citizens. We examine how an e-policing system is implementing this framework for improving the effectiveness and efficiency of crime control and also providing services to citizens. The system not only simplifies the collection, storage and retrieval of crime data but also uses Bayesian analysis to give constantly refined predictions of the risks of crime in different localities, along with the factors influencing the risk levels. Finally, evaluations of the system are discussed. User evaluations of the system allowed us to study the potential of the system for crime control and citizen services.