Subheadings in the Crimes Act 1958:In Victoria, tampering with the remains only covers sexual activity with a corpse. They need to up their game in respect of their law about tampering with a corpse.
@JudgeJudi referred to it in this post. There are also other links out there about it.
(5) Corpses
34B Sexual activity with the corpse of a human being
34BA Removal of body parts from the corpse of a human being
34BB Offensive conduct involving human remains
34BC Location of corpse or human remains immaterial
34BD Exceptions
34BE No defence of mistaken but honest and reasonable belief that activity was not sexual or conduct was not offensive
I suggest 34BB would be relevant.
34BB Offensive conduct involving human remains
(1) A person (A) commits an offence if—
(a) A intentionally engages in conduct involving human remains; and
(b) the conduct is offensive.
(2) A person who commits an offence against subsection (1) is liable to level 7 imprisonment (2 years maximum).
(3) An offence against subsection (1) is a summary offence.
(4) For the purposes of subsection (1), conduct is offensive if, in all the circumstances, it is likely to arouse significant anger, resentment, outrage, disgust or repulsion in the minds of reasonable persons.
(5) In this section—
human remains has the same meaning as in the Cemeteries and Crematoria Act 2003.