From 7 June 1921 until 30 March 1972, the devolved legislature for Northern Ireland was the
Parliament of Northern Ireland, which always had an
Ulster Unionist Party (UUP) majority and always elected a UUP government. The Parliament was suspended on 30 March 1972 and formally abolished in 1973 under the
Northern Ireland Constitution Act 1973.
Shortly after this first parliament was abolished, attempts began to restore
devolution on a new basis that would see power shared between
Irish nationalists and
unionists. To this end a new parliament, the
Northern Ireland Assembly, was established in 1973. However, this body was brought down by the
Ulster Workers' Council strike and was abolished in 1974. In 1982 another
Northern Ireland Assembly was established at Stormont, initially as a body to scrutinise the actions of the
Secretary of State, the British minister with responsibility for Northern Ireland. It received little support from Irish nationalists and was officially dissolved in 1986.
Current assembly and suspensions
The current incarnation of the Northern Ireland Assembly was first elected on 25 June 1998 and first met on 1 July 1998. However, it only existed in "shadow" form until 2 December 1999 when full powers were devolved to the Assembly. Since then the Assembly has operated intermittently and has been suspended on four occasions:
- 11 February – 30 May 2000
- 10 August 2001 (24-hour suspension)
- 22 September 2001 (24-hour suspension)
- 14 October 2002 – 7 May 2007
Attempts to secure its operation on a permanent basis had been frustrated by disagreements between the two main unionist parties (the
Democratic Unionist Party and the
Ulster Unionist Party) and
Sinn Féin, the largest nationalist party. Unionists refused to participate in the Good Friday Agreement's institutions alongside Sinn Féin until they were assured that the IRA had discontinued its activities, decommissioned its arms and disbanded.
The most recent suspension occurred after unionists withdrew from the
Northern Ireland Executive after Sinn Féin's offices at Stormont were raided by the police, who were investigating allegations of intelligence gathering on behalf of the IRA by members of the party's support staff. The Assembly, already suspended, dissolved on 28 April 2003 as scheduled, but the elections due the following month were postponed by the United Kingdom government and were not held until November that year.
On 8 December 2005, three Belfast men at the centre of the alleged IRA spying incident (dubbed "
Stormontgate") were acquitted of all charges. The prosecution offered no evidence "in the public interest". Afterwards
Denis Donaldson, one of those arrested, said that the charges "should never have been brought" as the police action was "political". On 17 December 2005, Donaldson publicly confirmed that he had been a spy for
British intelligence since the early 1980s.
 Mr Donaldson was killed on 4 April 2006 by the
"The Assembly" and "the Transitional Assembly"
"The Assembly established under the Northern Ireland Act 2006"
Although the Assembly remained suspended from 2002 until 2007, the persons elected to it at the
2003 Assembly election were called together on 15 May 2006 under the
Northern Ireland Act 2006 to meet in an assembly to be known as "the Assembly"
 (or fully "the Assembly established under the Northern Ireland Act 2006") for the purpose of electing a First Minister and Deputy First Minister and choosing the members of an Executive before 25 November 2006 as a preliminary to the restoration of devolved government.
On 23 May 2006
Ian Paisley, leader of the
Democratic Unionist Party (DUP) refused
Sinn Féin's nomination to be
First Minister alongside Sinn Féin's chief negotiator,
Martin McGuinness, as Deputy First Minister. This brought about changes to nominations to First and Deputy First Minister: these are now chosen by larger parties only, while other positions are voted in by sitting MLAs (under the
St Andrew's Agreement).
Eileen Bell was appointed by the Secretary of State
Peter Hain to be the Speaker of the Assembly, with
Francie Molloy and
Jim Wells acting as deputies.
 The Northern Ireland (
St Andrews Agreement) Act 2006 repealed the Northern Ireland Act 2006 and thus disbanded "the Assembly".
"The Transitional Assembly"
Northern Ireland (St Andrews Agreement) Act 2006 provided for a "Transitional Assembly" (or fully "the Transitional Assembly established under the Northern Ireland (St Andrews Agreement) Act 2006") to take part in preparations for the restoration of devolved government in Northern Ireland. A person who was a member of the Northern Ireland Assembly was also a member of the Transitional Assembly. Eileen Bell was Speaker of the Transitional Assembly and Francie Molloy and Jim Wells continued as deputies. The Transitional Assembly first met on 24 November 2006, when the proceedings were suspended due to a bomb threat by
 It was dissolved on 30 January 2007 when the election campaign for the current Northern Ireland Assembly started.
election to the then-suspended Northern Ireland Assembly was held on 7 March 2007.
Secretary of State,
Peter Hain signed a restoration order on 25 March 2007 allowing for the restoration of devolution at midnight on the following day.
 The two largest parties following the election, the
Democratic Unionist Party (DUP) and
Sinn Féin, agreed to enter power-sharing government together, and an administration was eventually established on 10 May with Ian Paisley as First Minister and Martin McGuinness as Deputy First Minister.