HO 4 : Home Office. The Home Office is the lead government department for immigration and passports, drugs policy, counter-terrorism and policing. (Central Government)
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}