In People vs Freeman of 1988, the California Supreme Court stated that adult film production was to be protected as free speech under the First Amendment. They ruled that since such films did not include obscene images and indecency, and stayed within society's standards, the adult film industry should be granted the freedom of speech. Escaping highly regulated government intervention, regulation in the adult film industry has been limited to preventing child pornography. In the United States Code of Regulations, under title Title 18, Section 2257, no performers under the age of 18 are allowed to be employed by adult industry production companies. The failure to abide by this regulation results in civil and criminal prosecutions. To enforce the age entry restriction, all adult industry pro