BTP meaning in Governmental ?

The British Transport Police (BTP; Welsh: Heddlu Trafnidiaeth Prydeinig; formerly the British Transport Commission Police; BTCP) is a national special police force that polices railways and light-rail systems in England, Wales and Scotland, for which it has entered into an agreement to provide such services. The force is funded primarily by the rail industry, and does not receive central government funding. British Transport Police officers do not have jurisdiction in Northern Ireland unless working under mutual aid arrangements for the Police Service of Northern Ireland, in which case any duties performed on a railway will be merely incidental to working as a constable in Northern Ireland.