(1)  A rail safety officer may, for compliance and investigative purposes or in an emergency, enter a place if –

(a) the place is a public place and the entry is made when the place is open to the public; or

(b) the occupier of the place consents to the entry; or

(c) the entry to the place is authorised by a search warrant; or

(d) the place is railway premises and the entry is made –

(i) when the place is open for carrying on activities by reason of which the place is railway premises; or

(ii) when the place is otherwise open for entry; or

(iii) if the place is not open as mentioned in subparagraphs (i) and (ii) , but the entry is urgently required to investigate the circumstances of a notifiable occurrence, at any time during which railway operations are being carried out or are usually carried out.

(2)  A rail safety officer who enters railway premises under subsection (1)(d) must not unnecessarily impede any activities being conducted at the premises.

(3)  In this section –

compliance and investigative purposes includes purposes –

(a) related to ascertaining whether the rail safety law has been or is being complied with, including whether an offence has been committed against the rail safety law; and

(b) related to ascertaining whether the terms of, or a condition or restriction of, an accreditation has been or is being complied with.