A timeline detailing the investigations which were conducted into the crash of the Super Puma helicopter on 1 April 2009, the decisions that were taken following these investigations and all the relevant dates has been published on the Crown Office and Procurator Fiscal Service(COPFS) website and can be accessed here: http://www.copfs.gov.uk/media-site/latest-news-from-copfs/531-super-puma-g-redl-2009-investigation-timeline.