Article révisé par les pairs
Résumé : Based on ethnographic research in an immigration detention centre in Belgium the author discusses the evolution of the regime to which the detainees are subjected. In the offi cial language of the Immigration Office, this evolution is called humanisation of detention. A reconstruction of the changes shows that instead the regime was changed for the well-being of the staff. In fact, immigration detention must be understood as a result of the rise of warehousing practices of the penal state. The staff of the centres has the task of executing the punitive measure of detention. However, this became too burdensome for the staff and so the regime was gradually humanised without change in legislation. All levels of staff were implicated in this change. The author argues that the changes were made to account to different actors: inside the Immigration Offi ce accountability was directed to the staff, while externally this process was called humanisation.