In the WA State Administrative Tribunal (SAT) Register of proceedings here:
https://www.sat.justice.wa.gov.au/_file ... edings.pdfWe can see that on 5/11/2018 David Letizia took the Commissioner of Police to the WA SAT. The case was dismissed by mutual consent on 12/04/2019
That outcome can be found here:
https://ecourts.justice.wa.gov.au/eCour ... PartyNames. (navigate to L -> LE -> LETIZIA)
On 26/08/2021 David Anthony Letizia again took the Commissioner of police to the WA SAT. Judgement was completed on 28/04/2022 but unfortunately that outcome is, for some reason, not published.
According to Brett B, Mr Letizia's bunker was discovered 9 months ago making the date around May 2022 which looks to be only a few days after this judgement.
This largely irrelevant event is being used as a reason to ban:
.28 Nosler
.300 Lapua Magnum
.300 Norma Magnum
.30-378 Weatherby Magnum
.330 Dakota
.338 Lapua
.338 Norma Magnum
.338-404 Jeffery
.338-378 Weatherby Magnum
.338 Edge
.340 Weatherby Magnum
.375 A-Square
.375 Gibbs
.375 CheyTac
.408 CheyTac
.416 Barrett
.460 Steyr
.50 BMG
.55 Boys