Leitrim is a relatively small county but even so there would have been a number of RIC barracks in places like Carrick on Shannon, Manorhamilton etc etc.
Do you have a particular part of Leitrim in mind?
If so, try visiting maps.osi.ie/publicviewer and choose the 25" historical option - it will allow you to search all of the county
Royal Irish Constabulary was created in 1822.
Royal Irish Constabulary ended in 1922.
Royal Ulster Constabulary ended in 2001.
Royal Parks Constabulary was created in 1872.
Royal Ulster Constabulary was created in 1922.
The budget of Royal Newfoundland Constabulary is 40,568,300 dollars.
1885
The Listowel mutiny occurred during the Irish War of Independence. The Royal Irish Constabulary refused to be relocated out of their rural police station in Listowel.
The motto of Royal Papua New Guinea Constabulary is 'Securing A Safer Community'.
Kew Constabulary that consists of just 15 officers.
Jim Herlihy has written: 'The Dublin Metropolitan Police' -- subject(s): Dublin Metropolitan Police, History, Police, Registers 'Royal Irish Constabulary Officers'
The Royal Ulster Constabulary was the name of the police force in Northern Ireland from 1922 to 2001