Miller v. California, 413 U.S. 15 (1973), was a landmark decision of the U.S. Supreme Court modifying its definition of obscenity from that of "utterly without socially redeeming value" to that which lacks "serious literary, artistic, political, or scientific value". It is now referred to as the three-prong standard or the Miller test.
In 1971, Marvin Miller, an owner/operator of a California mail-order business specializing in pornographic films and books, sent out a brochure advertising books and a film that graphically depicted sexual activity between men and women. The brochure used in the mailing contained graphic images from the books and the film. Five of the brochures were mailed to a restaurant in Newport Beach, California. The owner and his mother opened the envelope and seeing the brochures, called the police.
Miller was arrested and charged with violating California Penal Code 311.2(a) which says in part, "Every person who knowingly sends or causes to be sent, or brings or causes to be brought, into this state for sale or distribution, or in this state possesses, prepares, publishes, produces, or prints, with intent to distribute or to exhibit to others, or who offers to distribute, distributes, or exhibits to others, any obscene matter is for a first offense, guilty of a misdemeanor." California lawmakers wrote the statute based on two previous Supreme Court obscenity cases, Memoirs v. Massachusetts and Roth v. United States.
Miller was tried by jury in the Superior Court of Orange County. At the conclusion of the evidence phase, the judge instructed the jury to evaluate the evidence by the community standards of California, i.e., as defined by the statute. The jury returned a guilty verdict.
Miller appealed to the Appellate Division of the Superior Court, arguing that the jury instructions did not use the standard set in Memoirs v. Massachusetts which said that in order to be judged obscene, materials must be "utterly without redeeming social value." Miller argued that only a national standard for obscenity could be applied.