28 U.S.C. § 1351 : US Code - Section 1351: Consuls, vice consuls, and members of a diplomatic mission as defendant

      The district courts shall have original jurisdiction, exclusive
    of the courts of the States, of all civil actions and proceedings
    against - 
        (1) consuls or vice consuls of foreign states; or
        (2) members of a mission or members of their families (as such
      terms are defined in section 2 of the Diplomatic Relations Act).