Section 20AB of the Criminal Law Consolidation Act 1935 (SA) outlines this offence.

If a person intentionally causes human biological material to come into contact with the victim or threatens (by words or conduct) to cause human biological material to come into contact with the victim they are guilty of this offence.

Harm in relation to this offence has the same meaning as in Division 7A, section 21 of the Act, namely physical or mental harm (whether temporary or permanent).

A person will be taken to cause material to come into contact with a victim if the person performs any act, such as spitting or throwing the material at the victim, intending or likely to cause the material to come into contact with the victim.