A former head of investigations oversight at Barclays has described the behaviour of the bank's chief executive Jes Staley towards a whistleblower as "completely inexcusable". Dino Bossi, now a founding partner of whistleblowing firm Addveritas, was speaking to Financial Times reporters, and added that it took years to build trust inside an organisation for whistleblowers but it could be "destroyed with a single act". In April, Staley was reprimanded by his own board over efforts he made to uncover the identity of a whistleblower who had expressed concern about a senior manager at the bank. A statement from Barclays said that in addition to a reprimand it had cut Staley’s pay. The precise reduction would be determined once the