In Re GRAND JURY PROCEEDINGS

HOWARD, Circuit Judge.

A venerable legal Latinism, lex non cog-it ad impossibilia, teaches that the law does not compel the impossible. Guided by that august adage, we hold that a subpoena duces tecum compelling the production of documents to a now-defunct grand jury cannot be enforced by civil contempt sanctions before a successor grand jury, and we accordingly vacate the district court’s order holding the appellant in civil contempt. We reject, however, the appellant’s additional contentions that tribal sovereign immunity shielded it from subpoena and that the subpoena was unreasonably broad…