In a rare move for a lawmaker, House Financial Services Committee chairman Barney Frank announced Thursday that he has prohibited his staff from having any contact with a former aide who joined a company that operates derivatives exchanges after playing a key role in writing last year’s derivatives legislation.

The Massachusetts Democrat said in a release he agrees with critics who raised conflict of interest questions about Peter Roberson, who left the committee in February to become vice president of government relations at the IntercontinentalExchange Inc. ICE operates futures and over-the-counter derivatives exchanges and clearinghouses.

Subscribe Now

Independent and authoritative analysis and perspective for the bond buying industry.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.