6.—(1) A local weights and measures authority may purchase goods, and authorise any of its officers to purchase goods on behalf of the authority, for the purpose of ascertaining whether an offence under regulations 12 to 15 has been committed.
(2) If an inspector breaks open a package in pursuance of paragraph 1(c) otherwise than on premises occupied by the packer or importer of the package, and the package is not such that the packer or importer is in breach of regulation 4(1)(c), it shall be the duty of the inspector, if the owner of the package requests him to do so, to buy the package on behalf of the local weights and measures authority for the area in which he broke it open.