G20 leaders from the world's 20 biggest economies have pledged a crackdown on tax havens as part of the fight to save the global financial system.

Just a few months ago they vowed to blacklist the worst offenders, but one of the world's wealthiest tax havens has managed to avoid any uncomfortable scrutiny.

In the third of his special reports, Hamish Macdonald travelled to Jersey, in the Channel Islands.