Water Act 2000

An authorised officer may enter a place for a purpose other than a purpose mentioned in section 746, 747 or 748 if—

its occupier consents to the entry; or

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

the entry is authorised by a warrant; or

it is a place of business to which this Act relates and the entry is made when the place is open for business or otherwise open for entry.

For the purpose of asking the occupier of a place for consent to enter, an authorised officer may, without the occupier’s consent or a warrant—

enter land around premises at the place to an extent that is reasonable to contact the occupier; or

enter part of the place the authorised officer reasonably considers members of the public ordinarily are allowed to enter when they wish to contact the occupier.

For subsection (1)(d)—place of business does not include a part of the place where a person resides.