ABSTRACT
This article purports to show the change in the pattern of radicalization in French prisons over the last decade. Contrary to the extrovert model of radicalization in place up to the beginning years of the twenty-first century where a dozen people could be involved, the new one is introverted, based on very few individuals (mostly two or three people), and in contrast to the previous network in which people with psychological troubles were marginalized, psychopaths or psychically disturbed people can now play a major role. Whereas the extrovert model was easy to detect according to a profiling based on features like long beards, overt proselytizing, aggressive attitudes towards authorities and fundamentalist behaviour models, the new attitude avoids all those features and people exposed to radicalization have internalized the non-visible conduct pattern in order not to attract the attention of the authorities. The article explores some new attitudes resulting in radicalization and the major stumbling-blocks encountered by prison authorities in their attempts to unearth them.
