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
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.
