(1)If any person contravenes or causes or permits the contravention of a stop notice—
(a)after a site notice has been displayed, or
(b)if a site notice has not been displayed, more than two days after the stop notice has been served on him,
then, subject to subsection (3), he shall be guilty of an offence.
(2)A person who is guilty of an offence under subsection (1) shall be liable—
(a)on summary conviction to a fine not exceeding the statutory maximum, or
(b)on conviction on indictment to a fine;
and if the offence is continued after conviction he shall be guilty of a further offence and liable—
(i)on summary conviction to a fine not exceeding £200 for each day on which the offence is continued, or
(ii)on conviction on indictment to a fine.
(3)In proceedings for an offence under this section it shall be a defence for the accused to prove—
(a)that the stop notice was not served on him, and
(b)that he did not know, and could not reasonably have been expected to know, of its existence.