(1) A building inspector authorised under section 130 or section 131 to inspect a building or building work may enter on land or premises where the building has been erected or building work is being or has been carried out.
(2) However, the building inspector is not authorised to remain on the land or premises if, when asked by the occupier of the land or premises, the building inspector does not produce—
(a) if authorised under section 130—the inspector's identity card; or
(b) if authorised under section 131—a written certificate signed by the construction occupations registrar that the inspector is authorised to enter the land or premises.