Watchdog demands banks’ currency trading documents

Benjamin Lawsky, New York’s top financial regulator, has asked more than a dozen banks including Goldman Sachs and Deutsche Bank, for documents related to their currency trading practices, a person familiar with the matter said.

Lawsky also requested information from Lloyds Banking Group, Royal Bank of Scotland, Credit Suisse Group and Standard Chartered, according to the person, who asked not to be identified.

Lawsky has asked for traders’ emails and instant messages to review whether they manipulated currency rates, the person said.