Raising concerns about the protection of attorney-client privilege, the Association of Corporate Counsel, the U.S. Chamber of Commerce and other business groups this week challenged a federal trial judge’s ruling that ordered contractor Kellogg Brown & Root Services Inc. to hand over documents to lawyers for a whistleblower.

In a 28-page amicus curiae brief [PDF] filed with the United States Court of Appeals for the District of Columbia Circuit on Wednesday, lawyers for the organizations wrote that U.S. District Judge James Gwin erred when he ruled March 6 that KBR must produce 89 documents for lawyers who are representing whistleblower Harry Barko. He is suing the company for alleged violations of the False Claims Act.