This paper describes how the City of Natal in Brazil has been implementing technological systems in the context of public safety to transform itself into a smart city. In particular, this paper presents a smart city platform, named ROTA, that is able to collect, integrate, analyze and share sensitive information regarding citizens and patrol vehicles. A mobile application was developed to assess the feasibility of the proposed platform. Both platform and mobile application have been fully operational since 2014 and added value to the operational policing by providing a technological tool in the hands of patrol supervisors, providing precise and critical information that helps them in their duties.