Discrimination at the time of professional insertion contributes to establish boundaries between individuals thus fueling cross-communities divisions in society. Discrimination is considered here within a sociolingual perspective allowing to grasp the links between discourses and social conflicts. Using several methodologies – participative observation, direct observation, concealed speaker, assessment questionnaire and semi-directive interview – the research is assumed as a possibility to work simultaneously on: – a theoretical reflection on the integration of sociolingual practices as potential criterias of discrimination to observe how certain accents may be perceived as more legitimate for certain professional positions and how these sentiments may be replicated to the communities apparently represented by those speeches and, – a methodological reflection on discourse as a vector of discrimination where it is about working on the creation of a new instrument to help fighting those unjustified segregations by spotting recurrent language indices as evidence(s) of discriminatory attitudes