The third chapter explores the interplay between prison architecture and the administrative strategies that enforced discipline with the colonial prison. It argues that understanding the evolution of prison structures alongside modern penal administration is key to comprehending the prison’s repressive mechanisms. This chapter frames the prison as a dispositif—a tool of governance that operates both within the justice system and as an independent institution. Focusing on the material and spatial aspects of the prison, such as outer walls, general cells, and isolated wards, the chapter examines how these elements functioned as disciplinary tools. It highlights the interconnection between the spatial layout and the temporal routines of imprisonment, both meticulously monitored by prison officials. Finally, the chapter delves into how these architectural design and administrative strategy shaped the experience of colonial incarceration, subjecting prisoners to both physical and psychological repression, and prisoners, in turn, try to find liminal windows.