An authorised person may enter premises at any reasonable time, or times, to carry out a survey under section 199.
The power in subsection (1) may only be exercised if an authorised person has given at least 48 hours' notice of the first exercise of the power—
The requirement to give notice may be waived—
Notice under subsection (2) may state that, if entry to the premises were to be refused, an authorised person would propose to apply for a warrant under section 199B.
Notice required by subsection (2)(b) may be given by fixing it to some conspicuous part of the premises.
An authorised person who under this section has entered, or who is seeking to enter, premises in order to carry out a survey must produce a copy of the authorisation mentioned in section 199(3) on request by an occupier.
An authorised person entering premises to carry out a survey may—
as the authorised person thinks necessary for the purposes of carrying out the survey.
Equipment or materials taken onto premises by virtue of subsection (7) may be left in a place on the premises until the survey has been carried out provided that—
Where the premises include common parts of a building, references in subsection (8) to the ability of an occupier to use the premises include the ability of an occupier of a dwelling that has use of the common parts to use those parts or the dwelling.
In this section, "common parts", in relation to a building, includes the structure and exterior of that building and any common facilities provided (whether or not in the building) for persons who occupy the building.