Samenvatting

Immigration detention is formally not a punishment, but governments do seem to use it to deter irregular migrants from staying in the territory. This study explores whether and how practices of immigration detention in the Netherlands affect detainees’ decision-making processes regarding return and result in ‘specific deterrence’. 81 unauthorized irregular migrants were interviewed in immigration detention and their casefiles were examined. We find evidence for a limited deterrence effect: a minority of the respondents indeed wanted to return to their countries of origin in order to end their (repeated) stay in immigration detention. For some respondents the detention experience contributed to a desire to migrate from the Netherlands to a different European country. We go into the relevance of these findings for the continuing societal debate on the use of immigration detention.