This chapter argues that, from the early days of the political conflict in the 1970s the conditions were such that the Irish Republican Army (IRA) adopted some of the functions of the state, namely the provision of policing and punishment of ordinary crime. The hostility of the statutory criminal justice system, particularly the police, toward the working-class Catholic community dramatically increased the costs of using state services. The high levels of disaffection and aggression among working-class Catholics toward the police meant that the state could no longer fulfill its function and police the community in any “normal” way. A demand for policing therefore existed. Simultaneously, this demand was met and fostered by the IRA, which had the motivation, the manpower, and the monopoly on the use of violence necessary to carry out this role.