Terrorism After its first appear in the Legal World in 1930, one of the sessions of the International Conference on Criminal Law in Brussels has not been withdrawn from the list of the most current problems of today. It can be even more noticeable that the problem becomes bigger, more serious, the occurrence of a daily threat that progresses and for which partial attention is paid from a security character, but in a criminal-legal sense, the observation from a scientific point of view seems to be absent.