Garda Museum

From medieval watchmen to the Garda Síochána, Ireland's national police service, the Garda Museum (Músaem an Gharda Síochána) traces the history of law enforcement in the Republic of Ireland. It occupies the Treasury Building of Dublin Castle.

The displays follow a long succession of forces: the Baronial Constabulary, the County Constabulary, the Dublin Metropolitan Police, the Royal Irish Constabulary, and the Civic Guard, which became the Garda Síochána. Northern Ireland falls outside the museum's scope.

Designed by Dara Lynne Lenehan, the museum replaced an older one housed in the castle's Record Tower. Commissioner Nóirín O'Sullivan officially opened it in December 2016, but legal disputes kept the public out until August 2017.