It stuck me that we don't seem to have a "who are the
BTP▸ " thread ... and then I set about finding a short quote on their site (
http://www.btp.police.uk and
http://www.btp.police.uk/about_us.aspx ) and found it quite difficult to put an overall picture together.
Starting at Wikipedia (
https://en.wikipedia.org/wiki/British_Transport_Police )
The British Transport Police (BTP) is a national special police force that polices railways and light-rail systems in England, Scotland and Wales, for which it has entered into an agreement to provide such services. Seventy five percent of the force's funding comes from Britain's privatised train companies. 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.
As well as having jurisdiction across the national rail network, the BTP is also responsible for policing the Croydon Tramlink, Docklands Light Railway, Emirates Air Line, Glasgow Subway, London Underground, Midland Metro and the Sunderland line of the Tyne and Wear Metro (between Fellgate and South Hylton). They are not responsible for policing other tramway systems such as Manchester, Nottingham, Blackpool or Edinburgh, nor rail in Northern Ireland or the rest of the Tyne and Wear Metro.
As of September 2017, BTP had a workforce of 3,028 police officers, 1,530 police staff, 230 police community support officers, 30 designated officers and 330 special constables. In terms of officer numbers it is the largest of the three special police forces and the 11th largest police force in the United Kingdom overall.
The BTP are under the control or the
DfT» not the home office and their jurisdiction ends at the edge of railway premises. This has caused some concerns over the years, with pressures in London around 10 years ago, and currently in Scotland, for them to be merged with the force with general juristiction in the particular area. I also recall plans (though not mentioned to a findable-by-me extent on the sites I have linked to) to join them with other specialist police forces such as those who look after nuclear sites.
Thread started as background the story this morning concerning problems with the proposed / planned merger I Scotland between the BTP and Police Scotland - covered on our Frequent Posters board at http://www.firstgreatwestern.info/coffeeshop/index.php?topic=20459.0