Wegelin used sham corporations and foundations in Liechtenstein, Panama, and Hong Kong to hide the ball, accepted false documents and used code names and numbers to help U.S. clients remain in the shadows.
Georgian Dream has refused to endorse the same code of conduct that other political parties have accepted, and last month was fined for alleged campaign-finance violations.
Mr Sarkozy threatened to legislate to enforce these, but he has since accepted a form of self-regulation in the shape of a code of good governance for companies.
Mr Allister said that although the finance minister had claimed he had amended the code of conduct for appointments to introduce vetting, he believed that not all parties had implemented or accepted the changes.