Ok Good
For starters VOTE them out of office them initiate court cases If guilty they will face action like a certain minister , if no charges are proven then vote them back.
Quite a lot of tax evasion has take place but the numbers have been blown far out of proportion the Govt. is working on a legislation to offer a sort of immunity and let them get it back and put some conditions like telling them where to invest it and make them invest it and put taxes on it.
If they do not get it back them selves they will confiscate it and the defaulters will face legal action, quite a few taxation treaties have been signed , to check tax evasion.
The Free press tends to Hype all news from corruption to Chinese threat for TRP sake.