4. In the event of any contravention or failure to comply with—
(a)any relevant Community provision, or
(b)any requirement or condition imposed by or under any such provision, or
(c)any requirement imposed under regulation 3 hereof, or
(d)any undertaking given pursuant to any such provision or requirement,
the person responsible for the contravention or failure and the person then in charge of the goods shall each be liable on summary conviction to a penalty of £2000 and any goods in respect of which the offence was committed shall be liable to forfeiture.