Northern Ireland law
Northern Ireland law refers to the legal system of statute and common law operating in Northern Ireland since the partition of Ireland established Northern Ireland as a separate jurisdiction within the United Kingdom in 1921.
For the purposes of private international law the United Kingdom is divided into three distinct legal jurisdictions:Northern Ireland is a common law jurisdiction. Although its common law is similar to that in England and Wales, and partially derives from the same sources, there are some important differences in law and procedure between Northern Ireland and England and Wales. While influenced by English law, the Northern Ireland legal system is distinctive for a number of reasons: it has roots in Irish common law prior to Irish independence in 1921; following Irish independence, Northern Ireland became a devolved jurisdiction within the United Kingdom.
Irish revolutionary period
Unwilling to negotiate any understanding with Britain short of complete independence, the Irish Republican Army, the army of the newly declared Irish Republic, waged a guerilla war (the Irish War of Independence) from 1919 to 1921. In the course of the fighting and amid much acrimony, the Fourth Government of Ireland Act 1920 implemented Home Rule while separating the island into what the British government's Act termed "Northern Ireland" and "Southern Ireland". In July 1921 the Irish and British governments agreed to a truce that halted the war. In December 1921 representatives of both governments signed the Anglo-Irish Treaty. The Irish delegation was led by Arthur Griffith and Michael Collins. This created the Irish Free State, a self-governing Dominion of the Commonwealth of Nations in the manner of Canada and Australia. Under the Treaty, Northern Ireland could opt out of the Free State and stay within the United Kingdom: it promptly did so. In 1922, both parliaments ratified the Treaty, formalising dominion status for the 26-county Irish Free State (which renamed itself "Ireland" and claimed sovereignty over the entire island in 1937, and declared itself a republic in 1949); while Northern Ireland, gaining Home Rule for itself, remained part of the United Kingdom. For most of the 20th century, each territory largely aligned to either Catholic or Protestant ideologies, although this was more marked in the six counties of Northern Ireland.Separate unionist and nationalist historical narratives exist for the historic events in question; nationalist perspectives are further divided by the Civil War which ended the revolutionary period. The Northern Ireland peace process, with its promotion of dialogue and reconciliation, has modified this separation. The Bureau of Military History established by the Irish government in 1947 collected oral history accounts from republican veterans of the period 1913 to 1921. Its records were sealed until the last veteran's death in 2003; they were published online in 2012.