In December 1970, federal agents obtained a search warrant for respondent John Calandra's place of business, the Royal Machine & Tool Co. in Cleveland, Ohio, authorizing the seizure of bookmaking records and wagering paraphernalia in connection with an investigation of suspected illegal gambling operations.
The supporting affidavit included information from confidential informants, physical surveillance by FBI agents, and court-authorized electronic surveillance. On December 15, 1970, the agents conducted a four-hour search of the two-story building, spending more than three hours in Calandra's office on the second floor. Although the search yielded no gambling paraphernalia, an agent discovered a card among promissory notes showing periodic payments by Dr. Walter Loveland to Calandra.
Believing this to be a loansharking record related to an ongoing investigation of extortionate credit transactions under 18 U.S.C. §§ 892, 893, and 894, the agent seized the card along with company books and records, stock certificates, and address books. On March 1, 1971, a special grand jury was convened in the Northern District of Ohio to investigate possible loansharking activities.
The grand jury issued a subpoena to Calandra to question him based on the seized evidence. Calandra appeared on August 17, 1971, but refused to testify, claiming his Fifth Amendment privilege against self-incrimination. The Government applied for transactional immunity under 18 U.S.C. § 2514, prompting Calandra to seek a postponement to prepare a suppression motion. Calandra moved under Federal Rule of Criminal Procedure 41(e) for suppression and return of the seized evidence, contending the affidavit was insufficient and the search exceeded the warrant's scope.
Following a hearing on August 27, 1971, at which Calandra stipulated he would refuse to answer questions based on the materials, the District Court on October 1, 1971, ordered the evidence suppressed and returned and ruled that Calandra need not answer any grand jury questions based on the suppressed evidence. The Court of Appeals for the Sixth Circuit affirmed. The Supreme Court granted certiorari.
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