275.Section 124 places a duty on local authorities to enforce, within its area, the ban on the sale of spray paint to under 16s and the requirement to display warning statement in premises at which spray paint devices are sold by retail. Subsection (2) provides that the local authority is not authorised to institute proceedings for an offence under section 122(1) or 123(4). Trading standards officers will be primarily responsible for enforcing the ban as part of their duties.