Bank insolvency

As the major (English) trading creditor of the London branch of a troubled bank registered and with its principal operations and headquarters in Switzerland but with other branches in a variety of largely offshore jurisdictions, what insolvency process would you seek to have employed in which jurisdiction in order best to protect your interests? The majority of the bank's assets are in England and you fear that without proper control being exercised they might be dissipated in the impending collapse.