Lehman

The collapse of the 158-year-old investment bank in September 2008 was the world's largest bankruptcy.

Wall Street, the City of London, and the US and UK governments tried to organise a rescue, fearing - rightly - that Lehman's failure would set off a chain reaction around the globe.

Much of the report, which took evidence from all the major parties involved in Lehman's collapse and attempts to rescue the firm, contains allegations about an accounting "gimmick" known as "Repo 105".

This is a legal accounting device that involves shifting around assets to reduce the size of a company's balance sheet, and effectively give the appearance that debts have been cut.

It was a gimmick that Lehman used increasingly as its problems mounted.