The D.C. Circuit held that the District Court lacked subject-matter jurisdiction to enforce subpoenas issued by the National Labor Relations Board in its investigation of the appellant for possible contempt of a cease-and-desist order. The court found that the board's investigation was not nationwide but concerned a single employer and a single dispute relating to union-organizing activity at a single plant outside the District.
National Labor Relations Board v. Cooper Tire
February 28, 2006