Federal investigators issued a “broad” subpoena Monday for documents from the office of state Sen. Ulysses Currie and the influential committee he oversees as a probe into his connection with a regional supermarket continues.

The Department of Legislative Services is working to narrow therequests of the “broad” subpoena sent by Maryland U.S. Attorney Rod Rosenstein, said Karl Aro, the department?s director. FBI agents last week raided the Prince George?s County Democrat?s home and the headquarters of Shoppers Food Warehouse, for which he worked as a consultant.