20—(1) A person contravening any provision of these Regulations shall be guilty of an offence.
(2) A person guilty of an offence under regulation 18(1)(a) or (b) above shall be liable on summary conviction to a fine not exceeding level 5 on the standard scale or to imprisonment for a term not exceeding three months or to both.
(3) A person guilty of any other offence under these Regulations shall be liable—
(a)on summary conviction, to a fine not exceeding the statutory maximum or to imprisonment not exceeding three months or to both;
(b)on conviction on indictment, to a fine or to imprisonment for a term not exceeding two years or to both.