...it would make for an interesting international case study.

United Nations Convention against Corruption

The United Nations Convention against Corruption (UNCAC) is the first legally binding international anti-corruption instrument.[1] In its 8 Chapters and 71 Articles, the UNCAC obliges its States Parties to implement a wide and detailed range of anti-corruption measures affecting their laws, institutions and practices. These measures aim to promote the prevention, criminalization and law enforcement, international cooperation, asset recovery, technical assistance and information exchange, and mechanisms for implementation.
Investment Banking backgrounder from Wikipedia

Retail Banking backgrounder from Wikipedia

From Bloomberg Businessweek: Offshore Banks Must Adapt or Die in WikiLeaks Era

Jan. 25 (Bloomberg) -- You might think this is a great time for the offshore-banking industry. There is a lot of spare cash sloshing around the world. The mega-rich are still piling up money. Taxes are likely to go up as every developed country tries to cope with huge deficits, creating even more incentive to shift money to some island hideaway.

But it’s not so easy anymore.