Abstract In this work, a solution is proposed to the problem of crime fighting in a city using a mobile application that gets data in real time and offers risk control, privacy protection and security to the citizens. This application is capable of dealing with requests made by citizens located inside quadrants (areas where the city is divided). The system provides quick responses through police patrols assigned to particular locations. In addition, the system is capable of generating recommendations associated to those sites generating risks to visitors. Finally, the efficiency of using these applications is shown using the response time of the police to security events in the city.