A closure notice must—
A closure notice must be served by a constable.
Service is effected by—
A constable must also serve a copy of the notice on any person who occupies any other part of a building or other structure in which the premises are situated if, at the time of acting under subsection (3), the constable reasonably believes that the person's access to the other part of the building or structure will be impeded if a closure order is made.
Subsection (3)(d) or (4) does not require a constable to serve a copy of the notice on a person if it is not reasonably practicable to do so.
A constable acting under subsection (3) may enter any premises, using reasonable force if necessary, for the purpose of complying with subsection (3)(a) to (c).
A closure notice has effect until an application for a closure order is determined under section 136D.
But, if the hearing of an application for a closure order is adjourned, the closure notice ceases to have effect unless the court makes an order under section 136E(2).