Irish police

This is a description of law enforcement in Northern Ireland and the Republic of Ireland. Before the Republic (then called the Irish Free State) left the union, one police force - the Royal Irish Constabulary - policed almost the whole island (aside from Dublin, where the Dublin Metropolitan Police were the main force, Belfast where the Belfast Borough Police were the main force and the borough of Londonderry where the Londonderry Borough Police were the main force before merging with the RIC. See List of defunct law enforcement agencies in the United Kingdom and Irish Police records and also Royal Irish Constabulary Forum for other forces in Ireland that have been disbanded.).

The Royal Ulster Constabulary and the Police Service of Northern Ireland are the direct descendants of that force, while a new police force - the Garda Síochána - was set up in the Irish Free State. Today, due to the sharing of a land border and legislation introduced to both countries after the Belfast Agreement of 1998, there is cooperation between the main police forces of jurisdictions.

The Republic of Ireland has a single national civilian police force, Garda Síochána na hÉireann (Guardians of the Peace of Ireland). This force is responsible for all aspects of territorial civil policing. The Garda Síochána have been the only territorial police force in the Republic since their merger with the Dublin Metropolitan Police in 1925.

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