I didn’t listen to the whole podcast, but I think he says the relevant statements were made at a hearing of the Victorian Human Rights Commission, not the Latrobe Magistrates Court.
I believe such cases are heard in the Victorian Civil and Administrative Tribunal. A quick check, and I notice that there is a case called:
Unthank v Watchtower Bible and Tract Society of Australia ((Human Rights) [2013] VCAT 1810 (23 October 2013)
My guess is that is the one.
Also, I doubt you will get any judgement from the Vic Magistrates Court naming Unthank as a party, as the summons was a criminal complaint, which would be listed as “R v Governing Body of Jehovahs Witnesses”, or something like that. He was only an “informant” not a party in that.