Mo. Rev. Stat. § 573.025: Promoting child sexual abuse material in the first degree — penalties.

1. A person commits the offense of promoting child sexual abuse material in the first degree if, knowing of its content and character, such person possesses with the intent to promote or promotes child sexual abuse material of a child less than fourteen years of age or obscene material portraying what appears to be a child less than fourteen years of age.

2. The offense of promoting child sexual abuse material in the first degree is a class B felony unless the person knowingly promotes such material to a minor, in which case it is a class A felony. No person who is found guilty of promoting child sexual abuse material in the first degree shall be eligible for probation, parole, or conditional release for a period of three calendar years.

3. Nothing in this section shall be construed to require a provider of electronic communication services or remote computing services to monitor any user, subscriber or customer of the provider, or the content of any communication of any user, subscriber or customer of the provider.