Introduce students to the basic issues and trends and preventing illegal phenomena, namely terrorism, extremism and crime. Splits security threats, threats to global and regional security threats, definition, history, evolution and typology of terrorism, its strategy, means and methods. Extremist scene in the Czech Republic, spectator violence, religious extremism and environmental extremism, objectives and methods Typology of other social pathologies and current types of addiction, bullying, vandalism, corruption and organized crime.