s 3A Supply of regulated substances
(1) A person commits an offence if the person supplies a regulated substance to a member of the general public without first verifying that the member of the general public has a licence, or a recognised non-GB licence, to acquire, possess and use that substance. (2) In order to verify that someone has a licence or recognised non-GB licence, it is sufficient for these purposes to— (a) inspect the person's licence, and (b) inspect the form of identification specified in that licence. (3) A person commits an offence if the person supplies a regulated substance to a member of the general public without first entering details of the transaction (or causing details of the transaction to be entered) in the licence, or recognised non-GB licence, of the member of the general public. (4) A person commits an offence if the person supplies a regulated substance to a member of the general public without first ensuring that a warning label is affixed to the packaging in which the substance is supplied. (5) A “warning label” is a label clearly indicating that it is an offence for members of the general public to acquire, possess or use the substance in question without a licence (or recognised non-GB licence). (6) A person does not commit an offence under subsection (1), (3) or (4) if the requirements of that subsection do not apply to the person's case by virtue of regulations made under section 9B. (7) Before 3 March 2016, subsections (1) and (5) have effect as if the references to possession and use of the substance were omitted. (8) The Secretary of State may by regulations make provision modifying this section so far as it applies to any supplies that involve despatch of the substance to Northern Ireland or export of it from the United Kingdom.