Environmental Planning and Assessment Act 1979 No 203
118D Use of force
(1) Reasonable force may be used for the purpose of gaining entry to any premises (other than residential premises) under a power conferred by this Division, but only if authorised by the council in accordance with this section.
(2) The authority of the council:
(a) must be in writing, and
(b) must be given in respect of the particular entry concerned, and
(c) must specify the circumstances which are required to exist before force may be used.