BTP 3 : British Transport Police. The police force providing a policing service to rail operators, their staff and passengers throughout England, Wales and Scotland. (Police)
Joint Emergency Services Interoperability Principles JESIP (Working Together Saving Lives), Glossary (Common Language within Emergency Services - A Sub-Set of the UK Civil Protection Lexicon), UK 2015. http://www.jesip.org.uk/glossary/, (Emr Common Lang - Brit) {929}