This purpose of this briefing paper is to contribute to that process of identifying and debating the implications for Northern Ireland of remaining in or leaving the EU. It does not present arguments for either side. Instead it raises questions around a range of topics that it is believed need to be considered in advance of the referendum. The paper does not claim to be comprehensive in terms of the topics covered or the questions raised. It is designed instead as an initial foray into identifying the issues and questions that should inform debate. Its purpose is to stimulate discussion and to provoke others into identifying the issues they want considered and the questions they want asked and answered in advance of the referendum.