The petition for rehearing is granted and the order denying petitioners’ petition for the writ of certiorari,
We read the response as admitting that Alderisio’s conversations were overheard by unlawful electronic eavesdropping but as justifying nondisclosure on the basis of the Department’s determination that the information obtained was not arguably relevant to this prosecution. We cannot accept the Department’s
ex parte
determination of relevancy in lieu of such determination in an adversary proceeding in the District Court. Accordingly we grant the petition for certiorari as to each of the petitioners Alderisio and Alderman,
*
vacate the judgment of the Court of Appeals, and remand the case to the District Court for a hearing, findings, and conclusions on the nature and relevance to these convictions of any conversations that may be shown to have been overheard through unlawful electronic surveillance of petitioner Alderisio’s place of business in Chicago. In such proceedings, the District Court will confine the evidence presented by both sides to that which is material to questions of the content of any electronically eavesdropped conversations at petitioner Alderisio’s place
*138
of business in Chicago, and of the relevance of any such conversations to petitioners’ subsequent convictions. The District Court will make such findings of fact on these questions as may be appropriate in light of the further evidence and of the entire existing record. If the District Court decides, on the basis of such findings, that the convictions of the petitioners were not tainted by the use of evidence improperly obtained, it will enter new final judgments of convictions based on the existing record as supplemented by its further findings, thereby preserving to all affected parties the right to seek further appropriate appellate review. If, on the other hand, the District Court concludes after such further proceedings that the conviction of a petitioner was tainted, it would then become its duty to accord such petitioner a new trial.
Hoffa
v.
United States,
The petition for a writ of certiorari is granted, the judgment of the Court of Appeals is vacated, and the case is remanded to the District Court for further proceedings consistent with this opinion.
It is so ordered.
Notes
Petitioner Kolod died in August 1967 and the petition for cer-tiorari as to him is dismissed.
