Members of the Argentina's congressional bicameral commission investigating HSBC alleged illegal scheme to help Argentines evade taxes and siphon money out of the country, met in Paris with a group of French legislators and with UBS whistleblower Stéphanie Gibaud.
French judges have ordered HSBC Holdings to post a one-billion Euro bail to cover a potential fine after the bank was put under formal criminal investigation over allegations it helped customers dodge their taxes.
HSBC executives have been accused by MPs of incompetence for saying they were unaware of tax evasion activities in their Swiss private bank. However Chris Meares, the ex-head of HSBC's private banking division, said he didn't know what staff were up to.
Geneva's public prosecutor searched HSBC's lakeside Swiss office on Wednesday after opening a criminal inquiry into allegations of aggravated money laundering, the second probe to hit the bank this week.
Switzerland has charged a former computer analyst at HSBC's private bank in Geneva with industrial espionage and breaching the country's secrecy laws for passing confidential client data to foreign authorities.