SEIZURE OF BOOKS AND FILMS: may be made only upon probably cause that they contain obscenity or are otherwise unlawful.
Single seizures -- of a book or film to preserve it as evidence may be made only with a warrant issued by a neutral and detached magistrate. And even here a prompt post-seizure determination of obscenity must be available. If other copies of a film are not available to the exhibitor, a copy must be made for him so that he may continue showing the film.
Large scale seizures -- to destroy them or block their distribution or exhibition -- must be preceded by a full adversary hearing and a judicial determination of obscenity.
After seizing material, the gov't may enjoin its further publicaiton only after it is determined to be obscene in a full judicial hearing.
The Court allows gov'ts to establish censorship boards to screen movies before they are released in the community, as long as the procedural safeguards are followed. The censor bears the burden of proving that the movie is unprotected speech.
When the gov't adopts a content-based prior restraint of speech, the gov't has the burden of proving that the restriction is the least restrictive alternative to accomplish its goal.