However, none of these procedures seem appropriate for a border survey, since the Good Friday agreement implies that it would take place on the principle of reunification before negotiations were conducted and that a concrete proposal could be transposed into legislation. It is therefore not clear how a referendum would take place in the Republic of Ireland at this stage. In 2004, negotiations were held between the two governments, the DUP, and Sinn Féin, for an agreement to restore the institutions. The talks failed, but a document published by governments detailing the changes to the Belfast agreement was known as the “comprehensive agreement.” However, on 26 September 2005, it was announced that the Provisional Republican Army of Ireland had completely closed its arsenal of weapons and had “taken it out of service”. Nevertheless, many trade unionists, especially the DUP, remained skeptical. Among the loyalist paramilitaries, only the Loyalist Volunteer Force (LVF) had decommissioned all weapons.  Further negotiations took place in October 2006 and resulted in the St Andrews Agreement. In the context of political violence during the riots, the agreement forced participants to find “exclusively democratic and peaceful means to resolve political differences.” Two aspects were discussed: the Republic of Ireland also held a referendum on the same day. During the negotiations, the Irish Government had agreed that Ireland would amend Articles 2 and 3 of its Constitution, subject to the support of the people, to reflect the “principle of approval” (no change to northern Ireland`s constitutional status without the agreement of the majority).
More than 94% of the republic`s voters voted “yes” (with a turnout of 56%) and showed strong support for the agreement. As a result, the Irish Constitution has been amended and, although it has maintained the search for unity, it now recognises that Northern Ireland will remain in the United Kingdom as long as the majority wishes. The referendum was voted “yes” by a large majority across the province. A total of 1,738 ballots were corrupted. The participation rate was very high (81.1%) in a developed country where voting is not compulsory.  The corresponding turnout in the republic of Ireland was average for a constitutional referendum, but was almost widely approved (94.39%). This conference takes the form of regular and frequent meetings between The British and Irish ministers to promote cooperation between the two governments at all levels. On issues not left to Northern Ireland, the Irish government can present views and proposals. All decisions of the Conference are taken by mutual agreement between the two governments and the two governments, in order to make resolute efforts to resolve the differences between them.
The multi-party agreement required the parties to “use all the influences they might have” to obtain the dismantling of all paramilitary weapons within two years of the adoption of the agreement by referendums.