The research study focuses on specific issues of delinquency prevention and other deviant juvenile manifestations. Taking into account the impact of virtual environment on the formation of communication links within society and the consciousness of social groups or individuals, it has turned out on the initiation of this publication, the main purpose of which is to determine the capability and the effectiveness of the Internet and mobile applications results in the field of juvenile delinquency prevention. It is emphasized that for the police the Internet in the system of juvenile delinquency prevention becomes either an object of attention as possible determinant of juvenile deviation or means of preventive influence exerting on the consciousness and behavior of children. Keeping this in mind, the specifics of general and individual prevention activities with "the risk group" of children has been determined in a new format, i.e. using the Internet and mobile applications.