> Someone that does not want to be tracked by facial or gait recognition, either because he's a criminal or a political activist, will always be able to do that

> Someone that does not want to be tracked by facial or gait recognition, either because he's a criminal or a political activist, will always be able to do that. But if the system is not able to assign a face to a specific identity, it might immediately mark them as "suspicious". You'd have to bypass the system by really putting on the appearance of a face within the database.