Christina Sinclair, the acting director of retail at the Financial Conduct Authority (FCA), is to leave the regulator and join Barclays.
Barclays is likely to be given until the end of 2015 to deal with a shortfall in its capital reserves identified by the new banking regulator.
The European Commission has accused 13 banks, including Barclays, HSBC and the Royal Bank of Scotland, of colluding to hamper competition in the credit derivatives market.
Five major high street banks and building societies have agreed plans to plug an aggregate capital shortfall which at the beginning of the year stood at £27bn, the Prudential Regulation Authority (PRA) has announced.
Barclays' wealth division has closed its discretionary fund management service to advised clients with less than £250,000 of investable assets.
Barclays is the least trusted bank in Britain, according to a new survey.
Concerns over a potential end to US quantitative easing saw global fixed income markets slump in May, but further sudden sell-offs may be less likely.
Lenders have drawn down £16.5bn from the Funding for Lending Scheme since it opened on 1 August 2012 but net lending has fallen since the launch of the flagship scheme.
Barclays has been dragged into the scandal surrounding Liberty Reserve, a US cash-transfer business accused of running the biggest money-laundering operation in American history.
Steve Bloor, of Open Resolution, says the Financial Ombudsman is a key defence against unscrupulous banks.