Hedgpeth v. Pulido

A conviction based on a general verdict is subject to challenge if the jury was instructed on alternative theories of guilt and may have relied on an invalid one. See Stromberg v. California, 283 U. S. 359 (1931); Yates v. United States, 354 U. S. 298 (1957). In this case the Court of Appeals for the Ninth Circuit held that such an error is “structural error,” requiring that the conviction be set aside on collateral review without regard to whether the flaw in the instructions prejudiced the defendant. The parties now agree that the Court of Appeals was wrong to categorize this type of error…