19.—(1) It shall be the duty of every enforcement authority to enforce these Regulations.
(2) Where the enforcement authority is a local weights and measures authority the duty referred to in paragraph (1) shall apply to the enforcement of these Regulations within the authority’s area.
(3) Where the enforcement authority is the Department of Enterprise, Trade and Investment in Northern Ireland the duty referred to in paragraph (1) shall apply to the enforcement of these Regulations within Northern Ireland.
(4) In determining how to comply with its duty of enforcement every enforcement authority shall have regard to the desirability of encouraging control of unfair commercial practices by such established means as it considers appropriate having regard to all the circumstances of the particular case.
(5) Nothing in this regulation shall authorise any enforcement authority to bring proceedings in Scotland for an offence.