(1)A person commits an offence if he remains on or enters premises in contravention of a closure notice.
(2)A person commits an offence if—
(a)he obstructs a constable or an authorised person acting under section 1(6) or 3(2),
(b)he remains on premises in respect of which a closure order has been made, or
(c)he enters the premises.
(3)A person guilty of an offence under this section is liable on summary conviction—
(a)to imprisonment for a period not exceeding six months, or
(b)to a fine not exceeding level 5 on the standard scale,
or to both such imprisonment and fine.
(4)But a person does not commit an offence under subsection (1) or subsection (2)(b) or (c) if he has a reasonable excuse for entering or being on the premises (as the case may be).
(5)A constable in uniform may arrest a person he reasonably suspects of committing or having committed an offence under this section.