John Doe was the owner of several sole proprietorship businesses. During the course of an investigation of corruption in awarding county and municipal contracts, a federal grand jury served several subpoenas on John Doe, demanding the production of certain business records. The subpoenas demanded the production of the following records: (1) general ledgers and journals, (2) invoices, (3) bank statements and canceled checks, (4) financial statements, (5) telephone company records, (6) safe deposit box records, and (7) copies of tax returns. John Doe filed a motion in federal court, seeking to quash the subpoenas, alleging that producing these business records would violate his Fifth Amendment privilege of not testifying against himself. Must John Doe disclose the records? United States v. John Doe, 465 U.S. 605, 104 S.Ct. 1237, 79 L Ed.2d 552, Web 1984 U.S. Lexis 169 (Supreme Court of the United States)