WASHINGTON, D.C. - A collective bargaining agreement (CBA), through its terms, may not alter the way in which the Office of Inspector General (OIG) conducts its investigations, the District of Columbia Circuit U.S. Court of Appeals ruled June 3 (United States Department of Homeland Security U.S. Customs and Border Protection v. Federal Labor Relations Authority, No. 12-1457, D.C. Cir.; 2014 U.S. App. LEXIS 10231).