Walters engages critically with scholarship on the practices, spaces, laws, and devices that give effect to deportation. The involuntary removal of people from one territory to another is legally, ethically, politically, and logistically an inherently difficult business. It becomes even more tricky when states claim, as they generally do, to be respecting the fundamental human rights of those being removed, as well as the sovereignty of the states where deportees are being transported. Squaring this circle makes contemporary deportation a highly dynamic and in some ways experimental domain. A focus on technologies offers a promising way to open the black box of deportation and capture this dynamism. As such it reveals that deportation is not something fixed but a shifting and contradictory field of practices, programmes, strategies, and struggles.