(1) A police officer is authorised to do any or all of the following at or in relation to a serious incident site:(a) close any road, footpath or other open space;(b) direct a person to leave the serious incident site or remove a vehicle, vessel or aircraft from the site;(c) remove from the serious incident site (i) a person who fails to leave the site when directed to do so; or(ii) a vehicle, vessel or aircraft that a person fails to remove from the site when directed to do so;(d) direct a person not to enter the serious incident site;(e) prevent a person from entering the serious incident site;(f) allow a person to enter or remain in the serious incident site subject to such conditions as the officer considers appropriate;(g) perform any other function reasonably necessary or incidental to a function conferred by this subsection.(2) A person must not fail to comply with a direction given under subsection (1) .Penalty: Fine not exceeding 40 penalty units.(3) A police officer may arrest, without warrant, a person who fails to comply with a direction given under subsection (1) .(4) Nothing in this Division prevents a police officer who is lawfully on premises from using an authorisation referred to in subsection (1) or doing any other thing if the occupier of the premises consents.