The first report was prompted by Occidental Petroleum's Piper Alpha disaster on July 6, 1988, in which gas condensate ignited, killing 167 of the 229 people on board the oil platform in only 22 minutes. Then in 1996, a second report was issued following inquiry into the Dunblane Massacre at Dunblane Primary School. The final Cullen Report was a result of Lord Cullen's appointment to chair the 1999 Ladbroke Grove Rail Inquiry.
- "The Cullen Report - Offshore Safety Case". http://www.oceanstaroec.com/fame/2005/hse.htm. Retrieved 05-24-2010.
- The Hon Lord Cullen (1996-10-16). The Public Inquiry into the Shootings at Dunblane Primary School on 13 March 1996. London: The Stationery Office. ISBN 0-10-133862-7. OCLC 60187397. http://www.archive.official-documents.co.uk/document/scottish/dunblane/dunblane.htm. Retrieved 2010-05-24.
- "Scottish judge heads train crash inquiry". BBC News (British Broadcasting Corporation). 2000-09-29. http://news.bbc.co.uk/1/hi/uk/467665.stm. Retrieved 2010-05-24.