Transport Infrastructure (State-Controlled Roads) Regulation 2017

In relation to carrying out road works on a State-controlled road or proposed State-controlled road, the chief executive may—

survey or investigate land; and

set up trigonometrical stations, survey instruments, survey pegs, marks or poles (survey equipment); and

inspect, alter, repair or remove survey equipment; and

dig or bore into land to decide the nature of the land; and

take samples of the land; and

set out the lines of road works on land.

A person must not, unless the person has a reasonable excuse—

obstruct a person acting under subsection (1); or

alter, damage, remove or otherwise interfere with survey equipment.