Which corpus for the analysis of the prison as ``difficult ground''?

This article proposes a discussion of French and Romanian prison environments and, in addition, launches a few sociolinguistic research perspectives. Considering the detained person as a social actor and as a speaking subject, our study will develop the concepts like ``field'' and ``corpus''. Our goal is the multiplication of the regards for understanding of the prison privacy from the experiences of our respondents and the manifestation of the facets of prison identity, expressed in a uni-/multilingual and mono /multicultural medium.