ZURICH, July 11 (Reuters) - A rare Swiss parliamentary investigation due to start this week aims to establish what went wrong before the dramatic fall of Credit Suisse, once Switzerland's second biggest bank. It was apparent that Credit Suisse was in difficulties over the last two years after a string of scandals, with customers withdrawing money on a massive scale at the end of 2022. Could the central bank have done more, for example by promising Credit Suisse unlimited liquidity to reassure customers and stem the outflow of funds? It is unclear whether Credit Suisse and UBS executives are obliged to appear if asked, but they are expected to do so due to intense political and public pressure. POSSIBLE OUTCOMESWhile some experts have said the inquiry offers the Swiss authorities an opportunity to redeem themselves, others have warned it could simply become political theatre.

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Persons: Peter V Kunz, Isabelle Chassot, Franziska Ryser, John Revill, Tomasz Janowski, Alexander Smith Organizations: Credit Suisse, UBS, Bern University, Swiss, Swiss National Bank, Suisse, Swiss People's Party, Social Democrats, Greens, Green Liberals Party, Thomson Locations: ZURICH, Swiss, Switzerland, Mitte