Who Protects Our Money from Rogue Trading（在线收听）

Swiss bank UBS has now begun an internal investigation into the failure of its risk systems.

This follows revelations that a rogue equities trader has cost the company some 2.3 billion US dollars.

UBS says David Sidwell, the former chief financial officer of Morgan Stanley, is now carrying out an independent investigation into the trades and the bank's control systems.

The bank says it expects the investigation should be finished in a matter of weeks.

The alleged rogue trader, Kweku Adoboli is said to have carried out vast numbers of small, unauthorized transactions over the course of several months, ultimately leading to the huge loss.

Analysts say one reason that UBS failed to identify the unauthorized deals until last week is that Adoboli is well versed in the bank's inner workings.

For more on this situation, we're joined by Mark Hughes, executive business editor of China Daily.