In this recent podcast produced by Oxford University Press, Mary Bosworth discusses her new book, Inside Immigration Detention. She outlines her research journey, methods, and the challenges she faced. She discusses the number, scale, location and growth of detention centres in the UK, as well as the political climate surrounding the recent increased use of immigration detention and the circumstances under which an individual might find themselves in a detention facility. Mary addresses the similarities and differences between modern immigration facilities and the prison service, highlighting inconsistencies in the capturing and housing of detainees and the lack of an established ‘straightforward’ route to detention or release. She calls into question the fact that there is no statutory upper limit to periods of detainment and the psychological impact of this on detainees, leading her to call for more discussion of the purpose, processes, aspirations, and current failings of immigration detention centres.