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Rail Accident Investigation Branch

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Rail Accident Investigation Branch
Formation17 October 2005
TypeGovernment Agency
United Kingdom
Chief Inspector
Andrew Hall[1]
44 [2]
Websitewww.gov.uk/government/organisations/rail-accident-investigation-branch Edit this at Wikidata

The Rail Accident Investigation Branch (RAIB) is a British government agency that independently investigates rail accidents in the United Kingdom and the Channel Tunnel in order to find a cause, not to lay blame.[3] Created in 2005, it is required by law to investigate accidents causing death, serious injuries or extensive damage. It also has authority to investigate incidents that could have resulted in accidents.

Creation and remit[edit]

The Cullen Report into the Ladbroke Grove rail crash in 1999 recommended the establishment of an accident investigation body within the Department for Transport along the same lines as the Marine Accident Investigation Branch and the Air Accident Investigation Branch, bodies that have distinguished themselves by their professionalism and objectivity.[4][5]

During 2003, Parliament legislated – in the Railways and Transport Safety Act 2003 – to create the RAIB as an independent body charged solely with establishing the facts of the case and assessing and evaluating causes, but not apportioning blame or establishing liability; nor does the RAIB enforce safety law or conduct prosecutions. The RAIB became operational on 17 October 2005;[6] Carolyn Griffiths served as its founding director.[7] Before then, railway accidents were investigated by His Majesty's Railway Inspectorate (which in 1990 became part of the Health and Safety Executive but is now part of the Office of Rail and Road), and the British Transport Police (if there were grounds for suspecting the commission of a crime). Whilst the police must always be involved when there may have been a crime, the involvement of HMRI as the principal safety investigating agency attracted criticism on the grounds that the HSE might be investigating itself, if, for example, the HSE had approved a track layout or a signalling scheme later suspected to have been at fault.

The RAIB also satisfied the government's duty under European Union legislation (the European Railway Safety Directive 2004/49/EC[8]) to provide an independent body that investigates rail incidents and accidents in a blame-free manner.[3]

The RAIB has its remit laid down in law by The Railways (Accident Investigation and Reporting) Regulations 2005, which principally require the branch to investigate any accident or dangerous occurrence that results in:

  • The death of at least one person;
  • Serious injury to five or more people; or
  • Extensive damage to rolling stock, the infrastructure or the environment.

The RAIB has authority to investigate any incident on the following railway transport systems, but especially investigates those that may have implications for railway safety or those that "...under slightly different circumstances, may have resulted in an accident":[3]


The agency has two operational centres: one in Derby (The Wharf)[9] and the other in the Farnborough/[10] Aldershot area, at Farnborough Airport.[11] The Farnborough/Aldershot centre is Cullen House, adjacent to the Air Accidents Investigation Branch head office.[12]

Previously its southern office was in Woking, Surrey.[13][14] The move from Woking to Farnborough was scheduled for 2012.[15]

The Chief Inspector and Deputy Chief Inspector operate out of both Derby and Farnborough offices. Each office has two inspectorate teams and its own operational support staff.[16]

See also[edit]


  1. ^ "Andrew Hall - GOV.UK". GOV.UK. Retrieved 1 April 2022.
  2. ^ "Publications - GOV.UK". Department for Transport. Retrieved 27 November 2019.
  3. ^ a b c "About us - Rail Accident Investigation Branch - GOV.UK". GOV.UK.
  4. ^ "Roles of organisations in the UK's railways". gov.uk. Rail Accident Investigation Branch. 1 May 2018. Archived from the original on 21 December 2018. Retrieved 5 October 2019.
  5. ^ "An introduction to the RAIB" (PDF). gov.uk. Rail Accident Investigation Branch. January 2019. p. 2. Retrieved 5 October 2019.
  6. ^ "Rail Accident Investigation Branch launched". Railways Illustrated. No. 35. January 2006. p. 19.
  7. ^ "Carolyn Griffiths", Railway Gazette, 10 July 2017
  8. ^ "02004L0049-20091218 - EN - EUR-Lex". EUR-Lex (in Latin). 18 December 2009. Retrieved 27 November 2019.
  9. ^ "Contact us." Rail Accident Investigation Branch. Retrieved on 19 October 2010. "Rail Accident Investigation Branch Address The Wharf Stores Road Derby DE21 4BA"
  10. ^ "About - Rail Accident Investigation Branch - GOV.UK".
  11. ^ "Home". Rail Accident Investigation Branch. Retrieved 20 February 2023. Rail Accident Investigation Branch Farnborough Cullen House Berkshire Copse Road Aldershot Hampshire GU11 2HP (Satnav GU11 2HH) United Kingdom
  12. ^ "New headquarters for rail accident investigators". Government of the United Kingdom. 8 November 2012. Retrieved 20 February 2023.
  13. ^ "Department for Transport travel plan: Annexes." Department for Transport. Retrieved on 19 October 2010. "They have offices in Woking and Derby."
  14. ^ "About us." Rail Accident Investigation Branch. Retrieved on 19 October 2010.
  15. ^ "Daily Hansard - Written Answers". Parliament of the United Kingdom. Retrieved 20 February 2023.
  16. ^ "Rail Accident Investigation Branch Organisational Structure - September 2011 Archived 2011-12-10 at the UK Government Web Archive." Rail Accident Investigation Branch. Retrieved on 21 October 2011.

External links[edit]