PER CURIAM.
This appeal from the denial of a petition for mandamus is dismissed, following hearing, for failure to present a substantial question. We know of no principle that would compel adistrict court to order a United States Commissioner to issue a criminal warrant upon an unsigned and unsworn-to complaint merely because counsel for the complainant offers to testify to its truth. No other issues need be considered.
Judgment will be entered affirming the judgment of the District Court.