No person shall, for human consumption—
sell, or
offer or expose for sale, or
have in his possession for the purpose of sale or of preparation for sale,
any part of, or product derived wholly or partly from, an animal which has been slaughtered in a knacker's yard or of which the carcase has been brought into a knacker's yard.
A person who contravenes subsection (1) is guilty of an offence, and, if he is licensed under section 1 of the Slaughter-houses Act 1974 to keep either a slaughterhouse of a knacker's yard, the court may, in addition to any other punishment, cancel his licence.