This generates more violence, because the students don't want to be permanently surveilled. Yes, certain specific neighborhoods. Like the La Place Bethleem, at Saint-Gilles, where cameras were installed following a riot. But there is a distinction to be made between the zones surveilled by the public authorities and those surveilled by the private sector. In certain neighborhoods, individuals install cameras in front of their garages.
Companies do the same thing.
Belgacom, for example, has installed an incredible number of cameras all along the street at its headquarters on Rue Lebeau. One wonders, furthermore, if these cameras are there simply for the purpose of dissuasion. This poses a problem. The new technologies are not concerned with images, but with sound. Echosonography, for example, travels through walls.