The topic of the bachelor thesis is „Criminalistic prevention in environmentalis“. In the introduction, the reader is acquainted with the prevention of crime and other anti-social activities in general. The next part focuses on specific offenses and criminal offenses committed in environmentalism. Criminalistic methods applied in environmental prevention are also an important topic. At the end of the thesis it is about realization of forensic prevention in environmentalism and ways of prevention of crimes committed in environmentalism.