The police church
A local parish history recounts that the organ was originally paid for by members of the Royal Irish Constabulary and renovated in 1933 by members of the Gardai, and that an annual Mass of remembrance for all who served as police officers is held in the church. The Garda Siochana Retired Members' Association also keeps a page on the church.
Source: History of Aughrim Street Parish (local history page)