The museum of the Republic of Ireland's national police force. It is located in Dublin Castle. The archivist is Inspector John Duffy, Dip Arc Sc. The museum contains a vast amount of both archival and artefactual material, relating not only to the Garda Sochna, but also to the Irish Constabulary, The Royal Irish Constabulary, The Dublin Police, and The Dublin Metropolitian Police. Museum Artefacts Photographs and documents largely outlining the history and development of policing in Ireland in the 19th/20th centuries.