PART 4Test purchases and testing
1. An authorised person may purchase any article or substance to determine whether or not the provisions referred to in regulation 18(1) have been complied with and may carry out such tests and examinations on the article or substance in order to do so.
2. An enforcing authority must comply with paragraph 3 if—
(a)it has acquired any article or substance under the provisions of this Schedule; and
(b)it commences, or causes to be commenced, any proceedings under these Regulations by reason of tests and examinations on such article or substance.
3. Where paragraph 2 applies, an enforcing authority must if requested to do so, and if it is practicable in the circumstances, allow—
(a)a person who is a party to the proceedings; and
(b)any other person with an interest in the article or substance,
to have that article or substance tested.
4. An article or substance includes a listed product or any part of it.