Oklahoma Tax Commission v. Clendinning

By decision of the majority, a writ of prohibition will issue out of this court to suppress evidence sought to be adduced before a grand jury in Tulsa county for the determination of whether there are any violations of the state income tax law cognizable within that jurisdiction. A like writ of prohibition will issue to restrain contempt proceedings directed against Honorable J. Frank Martin, Chairman of the Tax Commission, who personally appeared before the grand jury but refused to testify concerning, or to adduce in evidence for the grand jury’s consideration of income tax violations,…