South Australian Consolidated Acts South Australian Consolidated Acts21—Offences relating to traffic control devices
(1) A person who,
without proper authority—
(a)
installs or displays a sign, signal, marking, structure or other device or
thing on, above or near a road intending that it will be taken to be a
traffic control device installed or displayed under this Act; or
(b)
intentionally alters, damages, destroys or removes a traffic control device
installed or displayed under this Act,
is guilty of an offence.
Maximum penalty: $5 000 or imprisonment for one year.
(2) In proceedings for
an offence against subsection (1)(a), an apparently genuine document
purporting to be a certificate of the Minister or a road authority certifying
that there was not proper authority for the installation or display of a
specified sign, signal, marking, structure or other device or thing as a
traffic control device on, above or near a specified part of a road is to be
accepted as proof of the matters so certified in the absence of proof to the
contrary.