((a)) ** Jurisdiction** The district courts of the United States shall have jurisdiction to restrain violations of .section 7522(a) of this title
((b)) ** Actions brought by or in name of United States; subpenas** Actions to restrain such violations shall be brought by and in the name of the United States. In any such action, subpenas for witnesses who are required to attend a district court in any district may run into any other district.