well, well, well, ... imagine my surprise

A parliamentary investigation into the collapse of Credit Suisse will keep its files closed for 50 years, according to a parliamentary committee document, a level of secrecy that has triggered concern among Swiss historians.

The document means the investigating commission would hand over its files to the Swiss Federal Archives after a longer gap than the usual 30 years to ensure high levels of confidentiality apply to the investigation, which has generated huge public interest.