Section 17 of the Aboriginal Heritage Act 1972 outlines offences relating to Aboriginal sites.
A person who -
(a) excavates, destroys, damages, conceals or in any way alters any Aboriginal site; or
(b) in any way alters, damages, removes, destroys, conceals, or who deals with in a manner not sanctioned by relevant custom, or assumes the possession, custody or control of, any object on or under an Aboriginal site;
commits an offence unless he is acting with the authorisation of the Registrar under section 16 or the consent of the Minister under section 18.