The organized crime is undoubtedly the main threat to States, to the extent that some of them have already fallen into their networks and others are seriously in danger of doing so .
For these reasons it is an essential subject that it has to be analyzed keeping in mind the theoretical and practical problems posed by this form of crime. The perspective taken is a theoretical and criminological one of the criminal organizations and terrorism, taking into consideration the national, regional and UN instruments to fight against this form of the criminality.