(1) It is the duty of every local weights and measures authority in Great Britain to enforce in its area the prohibitions in section 225.
(2) It is the duty of the Department for the Economy in Northern Ireland to enforce the prohibitions in section 225 in Northern Ireland.
(3) The CMA may also enforce the provisions of this Chapter.
(4) In exercising functions under this section, every local weights and measures authority in Great Britain, the Department for the Economy in Northern Ireland and the CMA must 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 section authorises a local weights and measures authority in Great Britain to bring proceedings in Scotland for an offence.