Sch 6 para 2 Immediate facts of the occurrence
(1) The occurrence— date, exact time and location of the occurrence; description of the events and the accident site including the efforts of the rescue and emergency services; the decision to establish an investigation, the composition of the team of investigators and the conduct of the investigation. (2) The background to the occurrence— staff and contractors involved and other parties and witnesses; the trains and their composition including the registration numbers of the items of rolling stock involved; the description of the infrastructure and signalling system - track types, switches, interlocking, signals, train protection; means of communication; works carried out at or in the vicinity of the site; trigger of the railway emergency plan and its chain of events; trigger of the emergency plan of the public rescue services, the police and the medical services and its chain of events. (3) Fatalities, injuries and material damage— passengers and third parties, staff, including contractors; cargo, luggage and other property; rolling stock, infrastructure and the environment. (4) External circumstances— weather conditions and geographical references.