David Leigh is the Guardian's former investigations executive editor
August 2020
Clive Ponting obituary
Senior civil servant who became a whistleblower over the Falklands war
December 2017
The press’s own watchdog is failing so I’m joining the fight for honest journalism
David Leigh
I can’t stand by while the government tries to scupper Leveson, and Ipso goes soft on hate speech, writes the former Guardian investigations editor David Leigh
March 2015
HSBC files
HSBC files timeline: from Swiss bank leak to fallout
Following the publication of files leaked by IT expert turned whistleblower Hervé Falciani, the global bank has admitted wrongdoing at Swiss arm but insists things have changed