One of the biggest Chinese illegal immigrant networks ever discovered in France was centred on a private business school based in the XVth arrondissement. This network made it possible to channel between 500 and 1000 Chinese immigrants into France annually, mostly young men between the ages of 20 and 25. Once in France, fake certificates attesting to their student status, report cards and diplomas allowed them to establish themselves permanently, without ever having to set foot in a classroom.

At the end of November, for the first time, 500 of INSA Toulouse most recent graduates received a secure card which attested to the authenticity of their engineering degree at their graduation ceremony. The aim of the operation is to fight against cheating and forgery. The cards given to the students are protected against forgery by a nanoparticle marker which is invisible to the naked eye.