As a part of a project of the Ministry of Interior of Serbia, department for the prevention of High Technology Crime, a workshop was held at our school entitled ’’Misuse of the Internet’’ . Our visiting lecturer for this occasion was chief police inspector, Mr Radoje Vuković. Children and teenagers are inevitably in contact with computers and communication technologies on a daily basis. As a part of the lecture students were told how to protect themselves and how to use the Intrernet safely, how to recognize potential danger and avoid risky behavior.