SOP 06 : Spontaneous Incident. Incident in relation to which the police have not had prior warning or notification to develop strategies, tactics and contingency plans (in contrast to pre-planned incident). (Civil Contingencies Secretariat)
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}