The aim of this article is to explore the peculiarity of Italian policies on immigration detention and their evolution over time. This will be done by highlighting the main factors that might explain the apparent political disinvestment in immigration detention in Italy, in particular in the years between 2013 and 2015, and account for the turnaround in approach announced and then implemented by the two Interior Ministers in charge between 2017 and 2019. The article uses the Italian case as an opportunity to explore the functions that are assigned to immigration detention in destination countries. In particular, it considers whether or not it can be argued that immigration detention in Italy has been “reinvented” (meaning that its functions have somewhat changed) as a consequence of the so-called “refugee crisis” and in light of Italy’s specific position in the contemporary geopolitics of the EU’s border control regime.