(1) Every person who contravenes section 20, section 21, or section 22 commits an offence and is liable on conviction on indictment to imprisonment for a term not exceeding 7 years.
(2) No person contravenes section 20 merely by providing legal advice, counselling, health advice, or any medical services to a person under 18 years of age.
(3) No person under 18 years of age may be charged as a party to an offence committed on or with that person against this section.