William O. Douglas,
United States v. Ventresca — Dissent
“ Such being the case, I see no way to avoid the conclusion of the majority below: 'If hearsay evidence is to be relied upon in the preparation of an affidavit for a search warrant, the officer or attorney preparing such an affidavit should keep in mind that hearsay statements are only as credible as their source and only as strong as their corroboration. And where the source of the information is in doubt and the corroboration by the affiant is unclear, the affidavit is insufficient.' Id., at 869-870. ”
